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    Home / Recipes / Keto Desserts

    Low Carb Keto Brownie in a Mug

    By Lisa MarcAurele · Jul 7, 2020 · 138 Comments

    54.6K shares
    Jump to Recipe
    keto brownie mug cake

    This low carb keto mug brownie is a rich and decadent treat that can be ready in a matter of minutes! It’s the perfect single-serving dessert to satisfy your chocolate craving.

    low carb ketoe brownie in a mug pintrest image
    Article Index
    • When to make the recipe
    • Step by step instructions
    • Note on cooking time
    • How to serve it
    • Nutritional information
    • More chocolate recipes
    • Recipe

    Since switching to a low carb way of eating, I’ve noticed that I don’t really crave sweets very often. But every now and again, the chocolate craving strikes.

    I have nearly 200 dessert recipes on my site, so there is always something delicious to make. For example, my keto zucchini brownies can easily satisfy a crowd!

    When to make the recipe

    With most dessert recipes, you end up with leftovers. And I don’t always want to have that temptation sitting around the house.

    That’s when this single-serve keto mug brownie is absolutely perfect!

    The whole recipe only requires 7 ingredients and can be ready in 2-3 minutes. How easy does that sound? Plus, it’s made with coconut flour, so it’s totally nut free as well as gluten free.

    You can also control the texture of your mug brownie based on how long you microwave it. Undercook for a gooey brownie, or cook the full 90 seconds for a cake-like texture. It’s completely up to you!

    The next time you’re craving chocolate and don’t want to spend time in the kitchen making a whole recipe, you have to try this keto brownie in a mug.

    Step by step instructions

    Ready to see how easy it is to whip up a rich, decadent, keto friendly dessert?

    • In a mug or ramekin, melt coconut oil and sweetener in the microwave. It will only take about 15 seconds.
    • Stir in the vanilla extract and the egg.
    • Mix in cocoa powder, coconut flour, and baking powder.
    • Add heavy cream.
    initial steps
    • Stir until a thick brownie batter forms.
    • Microwave anywhere from 30-90 seconds to reach your desired texture. 
    final steps

    That’s it! The next time you find yourself craving something sweet and chocolate, you’re only 5 steps away from this delicious low carb mug brownie.

    Note on cooking time

    When microwaving, keep in mind that a shorter cooking time will give you a fudgy brownie while a longer cooking time will make the texture more cake-like. 

    I recommend starting with 45 seconds, then checking the center. The cook time will also depend on the keto brownie mug or ramekin you’re using.

    cooked brownie

    How to serve it

    I always enjoy my mug brownie warm with a little bit of homemade whipped cream on top. It’s so good! I make mine using a whipped cream dispenser.

    You could also top your freshly baked brownie with a little keto vanilla ice cream for an extra delicious treat. The cold ice cream will melt into the hot brownie for an incredibly satisfying dessert.

    If you like your brownies with walnuts, feel free to chop a few and add them on top! You could even pan toast them for a few minutes to deepen their flavor before adding them to the brownie.

    If you’re going to treat yourself, you may as well do it right!

    fork bite of brownie

    Nutritional information

    Despite being made in a ramekin, this keto brownie actually turns out quite large! I think it’s perfect for 2 servings.

    This means you can share it with someone special, or save the other half for tomorrow’s dessert. 

    Or, if it fits your macros, you can always treat yourself to the whole thing. The full recipe is 250 calories with 14 grams of total carbohydrates and 6 grams of fiber. This leaves you with 8 net carbs for the whole brownie.

    It’s certainly an indulgence, but it’s not overboard to enjoy all to yourself!

    If you decide to save half, simply store in an airtight container in the refrigerator.

    keto brownie mug cake inside texture

    More chocolate recipes

    Looking for more delicious, low carb recipes to satisfy your chocolate cravings? Check out a few of these favorites:

    • Keto Chocolate Peanut Butter Bars taste just like peanut butter cups for a decadent dessert, fat bomb, or snack!
    • Chocolate Chip Cookie with Coconut Flour are the perfect low carb version of this classic dessert.
    • Keto Fudge is soft, rich, and only 3 net carbs per serving!
    • White Chocolate Fat Bombs give you a different chocolate flavor and only require 3 ingredients to make.
    • Keto Truffles feature a creamy ganache center for a wonderful low carb treat!

    Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!

    Recipe

    keto mug brownie

    Keto Mug Brownie in Microwave

    4.52 from 43 votes
    A delicious one minute chocolate brownie mug cake that bakes up in your microwave. Enjoy this simple low carb keto brownie recipe for a quick snack.
    Prep Time:1 minute min
    Cook Time:1 minute min
    Total Time:2 minutes mins
    Course: Dessert, Snack
    Cuisine: American
    Print Pin Review Recipe Save Recipe View Collections
    Servings: 2 servings
    Calories: 124

    Video

    Ingredients

    • ½ teaspoon coconut oil
    • 1 tablespoon low carb sweetener
    • ½ teaspoon vanilla extract
    • 1 large egg see note for egg-free
    • 2 tablespoons unsweetened cocoa powder
    • 2 teaspoons coconut flour
    • ½ teaspoon baking powder
    • 1½ tablespoons heavy cream more or less
    US Customary - Metric

    Instructions

    • Melt coconut oil and sweetener in microwave for about 15 seconds.
    • Stir in vanilla extract.
    • Add mixed dry ingredients (cocoa powder, coconut flour, and baking powder).
    • Beat in the egg.
    • Stir in heavy cream until thick brownie batter forms.
    • Microwave anywhere from 30-90 seconds to texture desired (less for fudgy brownies, longer time for cake-like)
    • Serve warm topped with whipped cream, if desired.

    Notes

    Brownie can be made in a coffee mug, ramekin, or any similar sized microwavable dish.
    To make the recipe egg-free, use a fiber syrup in place of the sweetener and omit the egg. Or a psyllium or flax egg can be used with granular sweetener.

    Low Carb Sweeteners | Keto Sweetener Conversion Chart

    Nutrition

    Serving: 0.5recipe | Calories: 124 | Carbohydrates: 7g | Protein: 5g | Fat: 9g | Saturated Fat: 5g | Cholesterol: 121mg | Sodium: 57mg | Potassium: 216mg | Fiber: 3g | Sugar: 1g | Vitamin A: 318IU | Calcium: 73mg | Iron: 1mg

    Additional Info

    Net Carbs: 4 g | % Carbs: 13.7 % | % Protein: 17.1 % | % Fat: 69.2 % | SmartPoints: 5
    Values
    Array
    (
        [serving_size] => 0.5
        [calories] => 124
        [carbohydrates] => 7
        [protein] => 5
        [fat] => 9
        [saturated_fat] => 5
        [cholesterol] => 121
        [sodium] => 57
        [potassium] => 216
        [fiber] => 3
        [sugar] => 1
        [vitamin_a] => 318
        [calcium] => 73
        [iron] => 1
        [serving_unit] => recipe
    )
    

    Notes on Nutritional Information

    Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

    Copyright

    © LowCarbYum.com - Unauthorized use of this material without written permission is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.

    First Published: November 6, 2015... Last Updated: April 22, 2020

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    Reader Interactions

    Comments

    1. Connie Hayden

      October 24, 2023 at 2:03 pm

      Anxious to try this!!!

      Reply
    2. Pat Q

      May 14, 2023 at 1:18 pm

      5 stars
      My husband asked for this mug cake for a treat. He really enjoyed it. My daughter liked it a lot too. Topped with keto whipped cream. It’s a keeper recipe. Thank you for sharing this.

      Reply
    3. Donna

      January 18, 2023 at 3:13 pm

      5 stars
      Absolutely delicious, easy to make, and helps me stay on track!

      Reply
    4. George

      March 03, 2022 at 6:54 am

      4 stars
      Too much chocolate for me.

      Reply
      • Ginger

        October 13, 2023 at 4:09 pm

        I anticipated it would be too much for me too, so I put just over one TBSP instead. Perfect! Had to make a second for 2 of my kids to share.

        Reply
    5. LesleySA

      July 06, 2021 at 12:06 pm

      Fair enough, I understand that coconut flour is super absorbent and that it is your recipe but, I still think the proportion of BP to flour incorrect.
      I made this today with the changes (I mentioned) in flour to BP.
      The results were impressive but, sadly I didn't pick up on the 2 TABLESPOONS of cocoa powder which made the brownie very bitter and inedible.
      "2 tablespoons unsweetened cocoa powder
      2 teaspoons coconut flour
      ½ teaspoon baking powder"

      I think the Gremlins took over and it should read
      2 teaspoons unsweetened cocoa powder
      2 Tablespoons coconut flour
      ½ teaspoon baking powder
      I intend making these again (correcting ingredient amounts I mentioned) as the recipe has potential for being absolutely divine.
      All the best.
      LesleySA

      Reply
      • Lisa MarcAurele

        July 07, 2021 at 7:06 am

        I have made it the way it's listed for years without an issue. A serving of cocoa powder is 1 tablespoon so 2 teaspoons might not be enough. Some cocoa powder is more bitter than others.

        Reply
    6. LesleySA

      July 06, 2021 at 4:21 am

      Hi Lisa
      "2 teaspoons coconut flour"
      "½ teaspoon baking powder"
      I think this is a typo?
      Should the recipe not be 2 TABLESPOONS coconut flour?
      (BP ratio to flour is totally disproportionate as it stands)
      I am about to make this with the adjustment suggested but, cannot rate until then. Looking forward to your response 🙂

      Reply
      • Lisa MarcAurele

        July 06, 2021 at 9:51 am

        You actually need only about a fourth to a third of coconut flour compared to all-purpose flour and almond flour. It soaks up the liquid and egg to expand so you don't need as much of it.

        Reply
      • Dani

        November 30, 2022 at 10:29 am

        I actually did this by mistake (I used two tablespoons, instead of teaspoon), but to fix it I had to double the egg, the baking soda, the sugar and the time... as the author said you don't need much coconut flour. It turned out quite well after the adjustment 🙂

        Reply
    7. Marie

      March 25, 2021 at 9:51 pm

      If I "undercooked" this brownie, would I have a "molton" brownie?

      Reply
      • Lisa MarcAurele

        March 26, 2021 at 9:10 am

        I haven't tried it with this recipe, but it should work.

        Reply
    8. Terry

      March 10, 2021 at 2:51 pm

      I'm afraid this tastes bitter. I've seen recipes with half the amount of baking soda for only 12 brownies, so that's probably the problem. I didn't get much of a chocolate taste despite all the cocoa; maybe more coconut oil is needed to "lubricate" the flavor.

      Reply
      • Lisa MarcAurele

        March 11, 2021 at 7:43 pm

        You could try more vanilla extract and reduce the cocoa a little. A bit more sweetener may work too.

        Reply
    9. Aleisha Bray

      February 24, 2021 at 4:53 pm

      Hi, just wondering why the recipe has carb calculations based on 0.5 servings when it appears to be a single serve, should the recipe be halved for one person?

      Reply
      • Lisa MarcAurele

        February 24, 2021 at 5:13 pm

        It's a lot for one person so it's best to stick to half the cake for a serving.

        Reply
    10. Carol

      December 04, 2020 at 8:16 pm

      4 stars
      I made the keto brownie mug cake it was pretty good I have to sugar because I didn’t want to be too sweet I ruined a dessert that way once but it was a little less sweeter than it should’ve been so I added heavy whipped whipping cream and some keto chocolate chips and it was very good. Make make it again! I took a picture but don’t know how to post it.

      Reply
      • Lisa MarcAurele

        December 05, 2020 at 8:49 am

        Would have loved to see the image. To show a photo, you can upload to a photo sharing site then post the link here.

        Reply
    11. Lana McQuown

      December 03, 2020 at 1:02 am

      Oh My Wow!!! I have a serious sweet tooth so have tried numerous keto chocolate mug cakes, this one is absolutely delicious. With less calories then most mug cakes, no eggy taste, and simple ingredients, I will be making this recipe often. Thanks for sharing.

      Reply
    12. Cas

      November 03, 2020 at 9:20 pm

      5 stars
      Amazingly good...fudgie and creamy and chocolaty!

      Reply
    13. Anne Howell

      September 10, 2020 at 8:16 pm

      Today is the first time I am seeing Smart Points in the nutrition info. Please explain what this means. Thank you

      Reply
      • Lisa MarcAurele

        September 11, 2020 at 8:54 am

        The SmartPoints are for those doing WW (Weight Watchers) and want to watch carbs too. The lower point recipes have less fat and calories.

        Reply
    14. Christel

      August 20, 2020 at 7:49 pm

      5 stars
      This by far the one of the easiest and quickest sweet tooth fixes. I added some salted caramel chocolate chips to it but i feel like you can twist this recipe in so many ways. Just simply delicious. 10 star worthy

      Reply
    15. Lisa

      August 20, 2020 at 10:32 am

      That looks delicious!

      Reply
      • Lisa MarcAurele

        August 20, 2020 at 3:22 pm

        This keto mug brownie is super delicious. I hope you give it a try!

        Reply
    16. Kimberly Christ

      July 15, 2020 at 9:57 pm

      Maybe I missed it? I don’t see where to add the egg. I guessed and added it after the vanilla.

      Reply
      • Lisa MarcAurele

        July 16, 2020 at 3:16 pm

        The original recipe was eggless and the instruction was missing where to add. However, it's in the video which adds it just before the cream.

        Reply
    17. Tiffany Wilson

      June 24, 2020 at 2:42 am

      Is there a another flour I could use? I tend to not like coconut flour.

      Reply
      • Lisa MarcAurele

        June 24, 2020 at 6:35 am

        You could use almond flour, but you'll need more of it and less liquid.

        Reply
    18. Warren Gates

      April 27, 2020 at 2:09 pm

      5 stars
      Thanks Lisa - another low carb gem!!! Quick, easy, guilt-free dessert.

      Reply
    19. Marine

      March 31, 2020 at 9:14 pm

      My daughter made this with a couple of subs-vegetable oil instead of coconut oil and Unsweetened vanilla almond milk for the heavy cream. Added some pecans and chocolate chips...absolutely fabulous!

      Reply
    20. Erika

      March 28, 2020 at 3:20 pm

      You mention baking soda in your video but you ingredient list states baking powder. Which one is the correct one to use? Thank you

      Reply
      • Lisa MarcAurele

        March 28, 2020 at 4:56 pm

        I use baking powder. You could use baking soda, but the amount would be different.

        Reply
    21. Ana cristina Duarte

      March 26, 2020 at 8:34 pm

      Hi Lisa! There is a large egg in the ingredients list, but the egg does not appear in the instructions.
      Also it shows Filed Under: Cakes, Egg-Free, Kid Friendly, etc...
      Could you clariffy?
      Thank you!

      Reply
      • Lisa MarcAurele

        March 26, 2020 at 9:04 pm

        The original recipe used a fiber syrup which doesn't require an egg. That option is in the notes.

        Reply
    22. Violet

      March 19, 2020 at 10:30 pm

      I have two questions if anyone could answer them that would be great, does this spike anyone's blood suger if you are type one diabetic? Also what does net carbs mean is it the same thing as normal carbohydrates or a completely different thing? Thanks

      Reply
      • Lisa MarcAurele

        March 20, 2020 at 11:58 am

        Net carb is the total carb minus fiber and erythritol. Fiber doesn't have the same impact as other carbs and erythritol has been shown to have no impact. As for a spike, it's dependent on the actual ingredients used. You can give it a try and do a test to see if it has any impact on you. It's quite large so you may only want to eat a half serving.

        Reply
    23. GT

      March 14, 2020 at 4:35 pm

      5 stars
      OMG!!! This was amazing.. Finally, a low carb chocolate mug cake I love. Thank you!!! Used Swerve Granulated and an egg and also, because every other mug cake I’ve tried was too dry, I doubled the coconut oil. I microwaved it for 45 seconds, check it, then microwaved another 15 seconds. I topped it with heavy cream and a few mini semi-sweet chips (Maybe a tsp?). Tasted it, then sprinkled about a quarter tsp more Swerve over it. This was divine and totally curbed my chocolate craving. This will definitely be my new go-to. Thank you so much!!!

      Reply
    24. anna

      November 03, 2019 at 2:02 pm

      3 stars
      My husband just learned he has type 2 diabetes. I decided to make this as a treat but did not have sukrin. I used an egg and one packet of stevia. It isn’t sweet at all. Can I or should I use more stevia next time? Thanks

      Reply
      • Lisa MarcAurele

        November 04, 2019 at 12:32 pm

        Sweetness varies greatly from person to person. So definitely add more to taste.

        Reply
      • Mia

        August 25, 2020 at 2:17 pm

        Hi Lisa!
        Just wanted to say this is my go-to choc brownie recipe! Thanks a lot for this! I just have a question, is it really 8 grams net carbs for the whole thing? I assume it’s because of the coconut flour?cause the other ingredients arent really that high in carbs..but also you only used 2 tsps coconut flour. Will it really increase the carb to 8 grams? Just curious..Thanks again!????

        Reply
        • Lisa MarcAurele

          August 25, 2020 at 3:10 pm

          Carbs come from the cocoa powder too and a little from the egg and heavy cream.

    25. MariLyn

      October 20, 2019 at 12:10 am

      I just tried this for my husband and autistic grandson. I changed the coconut flour to whey protein, and coconut oil to butter. I added a sprinkle of sugarfree chocolate chips to the batter, and after it was cooked, gave them a dollop of whipped cream . OMG!!! It was so delish and filling. Completely filled the chocolate craving, and is now our absolute favorite! Thanks again for making our low carb journey so delicious!

      Reply
    26. Jenn

      September 28, 2019 at 9:20 pm

      I love microwave chocolate desserts . I am eager to try this one! Thank you for the recipe. However, one thing that confused is that in the video you say you're using baking soda but in the written recipe it's listed as baking powder. Will you please clear this up? Thank you!

      Reply
      • Lisa MarcAurele

        September 29, 2019 at 8:26 am

        It's what's in the recipe card, not the video (likely a mistake). So use baking powder.

        Reply
    27. Kim Dunlap

      June 05, 2019 at 10:37 am

      If you eat the entire brownie it would be 8 net carbs right?

      Reply
      • Lisa MarcAurele

        June 05, 2019 at 11:44 am

        Correct! The whole brownie is 8g net.

        Reply
    28. Barbara

      June 03, 2019 at 8:17 pm

      4 stars
      Just had a chocolate attack. Having no Sukrin, I made this with 1 T of Splenda and an egg. Microwaved for 70 seconds. I have 900 watt MW. Bad assumption. Came out a little dry and definitely more cake like. And though I find almost everything packaged, bottled and canned sickeningly sweet, this needed a touch more sweetener (or I need to try a different sweetener) for my taste buds. While I love a slightly bittersweet chocolate taste, the combination of dry and barely there sweetness wasn't quite right. I used the Hershey Dark Cocoa which I love.
      Boy, this is going to be fun to experiment with. Probably will reduce cooking time to 50 seconds. And add a touch of Stevia for a little more sweetness. Depending on how that comes out, I have a bottle of pure maple syrup and I may try that instead of egg and sweetener.
      This did satisfy. My mistakes and all.

      Reply
      • Lisa MarcAurele

        June 04, 2019 at 7:22 am

        I don't care for bulk Splenda as it adds maltodextrin for volume. It's better to use another one-for-one sugar replacement like those made with erythritol.

        Reply
    29. Yuri Pereira Teixeira

      May 21, 2019 at 12:35 pm

      As a very frustrated lowcarb/keto recipe “research” I gotta say: best baking recipe I tried so far (and so simple at the same time). Thank you very much!

      Reply
      • Lisa MarcAurele

        May 22, 2019 at 6:12 am

        I'm glad this simple chocolate mug cake worked out for you!

        Reply
    30. Michelle

      February 11, 2019 at 7:40 pm

      The egg was left out of the written recipe.

      Reply
      • Lisa MarcAurele

        February 12, 2019 at 7:02 am

        There's 2 versions of the recipe. One uses egg and granular sweetener. The other has no egg and uses a syrup sweetener.

        Reply
    31. Robyn

      November 10, 2018 at 9:42 am

      Hi Lisa, thanks for your time and effort on this blog, it's great!

      Can I swap out the 1 TBSP of fibre syrup for an equal 1 TBSP erythritol, but just add an egg. I think is what you mean, right?

      Reply
      • Lisa

        November 10, 2018 at 10:02 am

        The egg isn't needed if using fiber syrup.

        Reply
    32. Marilyn

      October 26, 2018 at 3:19 pm

      I saw a keto friendly biscotti recipe and thought i saved it but now cant find it. Can you resend

      Reply
      • Lisa

        October 27, 2018 at 7:13 am

        I have a cranberry almond one at https://lowcarbyum.com/cranberry-almond-biscotti-cookies-gluten-free/ and a chocolate one at https://lowcarbyum.com/gluten-free-chocolate-biscotti/

        Reply
    33. Pat Holmblad

      September 08, 2018 at 12:32 pm

      Can I use almond flour instead?
      Same flavor?
      Thanks , PAT

      Reply
      • Lisa

        September 09, 2018 at 8:53 am

        You may have to make some other adjustments and the amount would be different.

        Reply
        • Angella Kurkova

          October 18, 2018 at 3:18 pm

          4 stars
          I used almond flour still tasted pretty good.

    34. Terri Iverson

      September 03, 2018 at 1:33 pm

      5 stars
      It would be helpful, I think if you mentioned what size mug or ramekin you use.

      Reply
      • Lisa

        September 03, 2018 at 4:02 pm

        I've made this in various sizes (the timing of the microwave can vary with both ramekin size and microwave). Typically, I use a 3.5 inch diameter ramekin.

        Reply
        • Laurie

          March 19, 2019 at 2:28 pm

          Hi! I used baking soda instead of baking powder so gross!! The video says to use baking soda!!!

        • Lisa MarcAurele

          March 19, 2019 at 7:40 pm

          You can, but the amount is slightly different.

    35. Wendy

      September 01, 2018 at 11:59 pm

      Could you please give the SUGAR equivalent so that I can make the calculations for my sweetener? Some are not measured cup for cup or tablespoon for tablespoon. Thanks

      Reply
      • Lisa

        September 02, 2018 at 6:43 am

        The 1 tablespoon fiber syrup or sweetener would be equivalent to 1 tablespoon sugar.

        Reply
    36. Katerina

      August 18, 2018 at 12:38 am

      5 stars
      I just made this as a keto chocolate dessert and it was DELICIOUS!

      I substituted 1 tbsp of protein powder for the sweetener and added 1tbsp of water.

      45 seconds later, some whipped cream with a sprinkle of pumpkin spice mix... mmmmm So good!

      Reply
      • Lisa

        August 19, 2018 at 7:35 am

        Thanks for sharing that! I bet the protein powder made it a bit lighter.

        Reply
    37. Tina

      June 08, 2018 at 6:17 pm

      5 stars
      I just tried this mug cake and it is phenomenal! Super rich. I like my brownies more on the fudgy side so 45 seconds was perfect! Will definitely make this 1000x over again!

      Reply
      • Lisa

        June 10, 2018 at 10:13 am

        Thanks for sharing your experience with the recipe Tina. I'm so glad you enjoyed the brownie!

        Reply
    38. Karen Aicken

      May 09, 2018 at 6:52 pm

      4 stars
      Thank you so much for this recipe! I have been having issues with almond flour so was happy to see there wasn't any in this recipe. I'd never heard of the syrup before so I appreciate you giving an alternate. I used Swerve and an Egg and it was absolutely delicious. Topped with whipped cream, it was even better. Trying very hard not to eat that second serving right away - but now I have a treat for tomorrow too.

      Reply
      • Lisa

        May 10, 2018 at 6:43 am

        I'm glad you enjoyed this little treat!

        Reply
    39. Michelle

      May 03, 2018 at 7:28 pm

      5 stars
      I just made these for my non-low-carb daughter and me. We both absolutely loved this! I used the Trim Healthy Momma sweetener with an egg. It's definitely the closest thing I've had to a chocolate cake. Next time I want to make the buttercream frosting to go with it. Thanks for all the great recipes!

      Reply
    40. Kristen

      April 19, 2018 at 12:34 am

      5 stars
      I just made this and it was by far the best low carb version a mug brownieI’ve made. More brownie like consistency than any other and better tasting. Thank you!!! It’ll be a go-to for when I need that little chocolate fix.

      Reply
    41. Leslie

      March 17, 2018 at 11:28 pm

      I added a square of the 85% dark chocolate you buy in bulk from Sprouts and it was very good and a surprise in the center. Poured 2 T heavy cream on top and enjoyed it so much! Thank you!

      Reply
    42. Rita Dalton

      March 03, 2018 at 11:43 am

      5 stars
      Just made this using coconut sugar and an egg as substitute for the syrup and single cream rather than double cream as that's all I had in. OMG it really satisfied a chocolate craving, but wasn't too sweet. Thank you for sharing this recipe.

      Reply
    43. Natalie

      February 27, 2018 at 7:49 pm

      5 stars
      I really liked this recipe. I used morena cane sugar and an egg. It was great! Made my own whip cream and just loved it!

      Reply
    44. Christine

      February 08, 2018 at 8:13 pm

      5 stars
      I hate cake. I don't like muffins either. Never have. I LOVED this.

      I didn't have everything on hand, so I made the following substitutions: I used almond flour in place of coconut, and added a bit extra because I wanted generous portions for two.. I used sola sweetener. I reduced the amount to about a tsp. I added an egg, and I used butter in place of coconut oil. 90 seconds in the microwave.

      My husband and I split this on date night. It's a game changer. I've been fighting the urge to eat something carb heavy all day, and this more than satisfied that.

      Reply
      • Lisa

        February 09, 2018 at 6:37 am

        Thanks for sharing your subs! Glad it worked out.

        Reply
    45. Nicole

      January 26, 2018 at 11:11 pm

      3 stars
      I ran the ingredients in a recipe nutrition calculator and it came out double what your nutrition label indicates. Why is that?

      Reply
      • Lisa

        January 27, 2018 at 5:37 am

        Updated the data with the results from a more accurate calculator.

        Reply
    46. Alicia

      January 24, 2018 at 1:35 pm

      hi,
      I was wondering for someone who doesn't fancy using microwaves if this could be baked instead..

      Reply
      • Lisa

        January 24, 2018 at 2:43 pm

        It can, but I don't have the baking time. I'd suggest setting the oven for 325-350F and testing for doneness.

        Reply
    47. Joanne

      January 10, 2018 at 1:47 pm

      5 stars
      This was amazing! I used an egg and sweetener, and butter instead of coconut oil. I Cooked it for one minute and the texture was perfect.
      I wonder if I can make it X6 or so into a cake that I can bake in the oven for a birthday. Any ideas on how I would adapt it?
      Thanks!

      Reply
      • Lisa

        January 10, 2018 at 6:39 pm

        It should work in a larger size, but you'd have to adjust the baking time.

        Reply
    48. CARolina

      December 25, 2017 at 3:44 am

      I just made a mug cake with 2 tablespoons coconut flour ,three tablespoons of xylitol , 1/2 teaspoon of baking powder , 2 teaspoons of raw cacao powder , 2 table spoons of heavy cream and one egg. 90 seconds in microwave and whooped cream on top after it cooled . Amazing!

      Reply
      • Lisa

        December 25, 2017 at 5:40 am

        Thanks for sharing!

        Reply
    49. Lunchie

      September 20, 2017 at 5:07 am

      5 stars
      Literally, the *best* low carb mug brownie I have had to date! I've tried it with three different variations, but the most functional variation was to substitute sugar free maple syrup(I used 'Nature's Hollow' brand) for the fiber syrup. It appears to need a 'syrup-like' addition to make the mix come together better. I also tripled the coconut oil, as I both wanted to up the fats and make it richer. The texture was like an under-done brownie(which I wanted), and souffle-like on top after 30 seconds in my microwave.

      In case anyone wants to try this the way I made it,(tripling the coconut oil and substituting the sweetener with Sugar Free Maple Syrup and several drops of liquid Stevia) here are the macros for my version:

      6.75carbs, 16 fat, 1.3 protein

      Thank you so, so much for this recipe!! I plan on making it again and again!

      Reply
      • Lisa

        September 20, 2017 at 5:52 am

        Thanks for the notes on the recipe. I've seen the Nature's Hollow syrup, but haven't given it a try. But, I'm definitely going to try tripling the coconut oil next time.

        Reply
    50. Heather

      September 15, 2017 at 3:51 am

      I want to make this for a conworker, can I mix all the ongedeants together put a lid on it (have it in a lunch paid w ice) and the. Microwave it when it's ready?

      Reply
      • Lisa

        September 15, 2017 at 6:22 am

        You might want to separate the coconut flour and add it in just before cooking. Otherwise, it should be fine.

        Reply
    51. Brynne Edwards

      June 22, 2017 at 8:28 pm

      5 stars
      I was just tearing my kitchen apart looking for something BAD! Not sure where this craving came from but I stopped, googled this and YES! Omg! Just what I needed. Followed recipe as directed with the sweetener and an egg, 90 seconds in a large Ramekin and.... perfection! Thank you so much!

      Reply
      • Lisa

        June 23, 2017 at 8:29 am

        Glad you were able to satisfy the craving without eating something really bad!

        Reply
    52. Connor

      June 22, 2017 at 1:34 am

      I replaced the syrup with organic honey so there are about 17 more carbs but it still tastes great!

      Reply
      • Lisa

        June 22, 2017 at 6:26 am

        Honey is very similar to the syrup so it should be just about the same other than the added carbs.

        Reply
    53. Rachel

      May 17, 2017 at 8:05 pm

      5 stars
      This was so great! I doubled the vanilla and used an egg with one tbls of granulated sweetner and omitted the baking powder (because I don't have any right now!) I really wanted a chocolate treat and this hit the spot. Thank you!!!

      Reply
      • Lisa

        May 18, 2017 at 5:27 am

        Thanks for sharing how it worked out for you!

        Reply
    54. Barbara

      April 27, 2017 at 2:25 pm

      5 stars
      I love this recipe!! Turns out perfect everytime! We use 1 egg & sweetener making it now,LOL
      Thank you!

      Reply
      • Lisa

        April 27, 2017 at 9:48 pm

        It does come out much better with the added egg.

        Reply
    55. SIUE Teacher

      April 13, 2017 at 7:19 pm

      How much Swerve should I use? I tablespoon? Please help thanks

      Reply
      • Lisa

        April 13, 2017 at 7:26 pm

        It would be the same, 1 tablespoon. And, it helps to add in an egg if not using the syrup.

        Reply
    56. Alissa

      March 13, 2017 at 12:20 pm

      Does this recipe taste like a regular mug cake or no? Terrified of making more chocolate dessert because of my epic failure brownies. We couldn't even swollen them they were that awful!

      Reply
      • Lisa

        March 13, 2017 at 7:00 pm

        I found it more like a brownie. You may want to add a bit more oil if you don't want to use the syrup.

        Reply
        • Jacob

          April 26, 2017 at 10:20 pm

          1 star
          No mine turned out horrible. Will not use this recipe again. I had to keep cooking it to try and get it solid. It over ran out of my large coffee mugs and then left about 1/2 of the mug with the brownie in it. It was still wet and runny after 3.5 mins of microwave and my microwave was filthy from the over run. Next time I will throw an egg in my re iOS so I know it will turn into a
          Good solid treat.

        • Lisa

          April 27, 2017 at 1:13 pm

          This recipe works best with an egg if you aren't using the fiber syrup sweetener. I've never had an issue with it cooking. There must be a difference in ingredients.

      • Frances

        May 08, 2017 at 5:03 pm

        I have looked for a mug cake or brownie that would taste real and I tried this but it was bitter so I changed a few things and it came out wonderful every time. It taste same as brownie and turn out same every time I have made it which is a lot. I put (1) teaspoon coconut oil ,1/2 teaspoon butter and (1) tablespoon Sukrin gold fiber syrup in mug and heated in microwave 17 seconds to melt. I then added 1/2 teaspoon vanilla extract and more sweetener to your taste ( I added 7 Splenda packets) and mixed well. I then added my 2 tablespoon heavy whipping cream, 1 1/2 tablespoon cocoa, 1/2 teaspoon baking soda ,2 teaspoons almond flour and mixed really good. I put in microwave 67 seconds and then let cool for a few mins. Very very good.

        Reply
        • Lisa

          May 08, 2017 at 5:55 pm

          Thanks for sharing! I may add something in the notes to check out the comments so others don't miss this. I'll give it a try too!

    57. Janet

      March 04, 2017 at 5:22 pm

      I made this Mug cake without the syrup because I didn't have any and with 2 TBSP whole milk instead of the cream. I cooked it about 70 seconds - It only rose about 2 inches but was moist and delicious. Just what I needed to fix that craving. I ate the whole thing.

      Reply
      • Lisa

        March 04, 2017 at 5:54 pm

        I like the moist and delicious part!

        Reply
    58. Lisa

      March 02, 2017 at 3:04 pm

      4 stars
      Hi Lisa,

      I made this mug cake today and it was great! I have tried quite a few and they were close to horrible. I did use the coconut flour and I used 1 tablespoon of Swerve (Erythitol). It was not crumbly at all. I may use a little bit more coconut oil next time, but we will see if that makes any difference in texture. I put a bit of whipped cream on top. Very happy!

      Reply
      • Lisa

        March 03, 2017 at 4:25 pm

        I find Swerve does work a bit better than the stevia based bulk sweeteners.

        Reply
      • Cara

        April 14, 2018 at 2:50 pm

        I have swerve confectioners. Mine was not very sweet at all but the texture was good. Would this make a difference

        Reply
        • Lisa

          April 14, 2018 at 5:38 pm

          I find sweetness to be a personal preference. You can always add a little more next time.

    59. Kelly

      February 12, 2017 at 4:44 am

      5 stars
      Made this exactly as you outlined. I didn't have the syrup you used so used some sugar free maple flavoured syrup instead. It was so good, my perfect mug cake search is finally over. I cooked for 45 seconds. Thank you for your effort to share your recipes. Much appreciated!

      Reply
      • Lisa

        February 12, 2017 at 7:39 am

        I was wondering if it would work with low carb pancake syrup. I'll have to try that as it would be lower in carbs if using Walden Farms maple flavored syrup or a homemade version.

        Reply
    60. Cathyo

      January 07, 2017 at 2:21 pm

      5 stars
      I doubled coconut oil to 1 tsp, cut Special Dark Hershey's to 1 Tbsp, , used 1Tbsp Stevia in the Raw, and a couple drops of liquid sucralose. Cooked for 50 seconds and it was crumbly, but the flavor was divine....especially with a bit of whipped cream. I'll try 40 seconds next time. Thanks for the recipe!

      Reply
      • Lisa

        January 07, 2017 at 2:55 pm

        Thanks for the info!

        Reply
    61. Machelle

      October 07, 2016 at 6:42 pm

      I doubled the coconut oil, vanilla and splenda. It was great. Best tasting mug cake. It was crumbly. I may add 1/4 to 1/2 egg next time. I love the taste.

      Reply
      • Lisa

        October 08, 2016 at 6:58 am

        Thanks for letting us know how you made the recipe and how it turned out!

        Reply
    62. judy

      August 24, 2016 at 8:49 am

      can another type of oil be substituted for the coconut oil such as olive oil or canola oil. also can another type of flour be substituted such as almond flour or oat flour

      Reply
      • Lisa

        August 24, 2016 at 11:54 am

        You can use another oil, but other changes may be needed if you sub the flour.

        Reply
        • Rachel

          January 27, 2017 at 1:01 am

          4 stars
          I subbed the coconut flour for almond flour because that was all I had. Measure for measure it was 8 tbsp of almond flour and it turned out great!

        • Lisa

          January 27, 2017 at 5:03 am

          Good to know!

    63. Marcia Wilcox

      July 28, 2016 at 5:04 pm

      4 stars
      Hey, Lisa, thanks for all the awesome recipes! I love this site! However, you may want to look at this study: http://easacademy.org/trainer-resources/article/isomalto-oligosaccharides
      It says in a nutshell that IMO's do indeed get digested like carbs, so if a low-carb dieter uses Sukrin a lot, they might want to know that. I've had good luck with erythritol, the main drawbacks being that it needs a sweetness-boost (I use stevia) and it has that sort of cooling effect which doesn't bother me but might bother some. At least it doesn't cause me gastric distress like some low-carb sweeteners!

      Reply
      • Lisa

        July 29, 2016 at 7:22 am

        I have known about the IMO carb issue. That's why I only use very small amounts now. It's too bad because I used to love Quest bars but rarely eat them now.

        Reply
    64. Kaylyn

      March 26, 2016 at 9:44 pm

      Wow! I just found a new favorite mug cake recipe! I used 2 tbsp of Swerve for the sweetener (which might have been a little too much, but I have a big sweet tooth). I threw in some Lily's sugar free chocolate chips and topped it with a cream cheese frosting. So good! Thanks for the recipe!

      Reply
      • Lisa

        March 27, 2016 at 7:25 am

        The addition of chocolate chips certainly helps with any dryness issues. Great idea!

        Reply
    65. Denise Sowles

      March 01, 2016 at 7:52 pm

      We couldn't eat this either despite several attempts. Didn't have that syrup so used a couple different sweetners and added more coconut oil. I used regular cocoa the second time and it was still very bitter and every batch was dry and gritty. It sounds so good I'm willing to do some more experimenting - that's another benefit to mug cake recipes. If it fails you aren't wasting a ton of ingredients.

      Reply
      • Lisa

        March 01, 2016 at 7:58 pm

        I need to rework this one with more common ingredients. It was great with the syrup. You can drop a piece of low carb chocolate in it for a molten treat. That may help.

        Reply
    66. Chanell

      January 12, 2016 at 8:11 pm

      Mine turned out with perfect texture, but it is not edible 🙁 Any idea why it would be super bitter?

      Reply
      • Lisa

        January 13, 2016 at 5:40 am

        You may just prefer it a little sweeter. I'd add a few drops of stevia liquid or a little more of your preferred sweetener.

        Reply
    67. Linda

      November 10, 2015 at 11:29 am

      I had the same problem as Stef. Perhaps an egg needs to be added?

      Reply
      • Lisa

        November 10, 2015 at 3:01 pm

        Are you using the fiber syrup or granular sweetener? I've made this several times with the syrup and it's very good. With the granular, it more crumbly. I'm going to work on this recipe a little more and post an update with how to get better results. I'll try an egg, but I'm thinking a little glycerin may also help since the syrup works better.

        Reply
        • Sara

          April 05, 2017 at 11:42 pm

          4 stars
          Hi, I made your recipe. I used granular erythritol and it was just all crumbly so I added 1 large egg and whipped everything up together. I microwaved for 1 minute and it was perfect. I put a little cream on top to cool it down. Probably would have been fine at 45 minutes too.

        • Lisa

          April 06, 2017 at 8:19 am

          Egg will hold it together if you don't use the fiber syrup.

      • LE Beatty

        July 27, 2019 at 5:50 pm

        Brownie in a Mug Cake is great

        Reply
    68. Stef

      November 06, 2015 at 11:10 am

      I decided to make this to bring to work for my afternoon snack. I followed the recipe exactly, however, the final mixture was VERY dry, and even after adding more cream, it was still crumbly dry. I stopped at about 2.5T cream thinking that perhaps I just needed to cook it, but it came out all crumbly. I didn't use the fiber syrup, but instead used 1.5t of an erythritol/stevia mixture, and hershey's dark cocoa. It's still yummy and I'm still going to eat it, but wonder if I should have continued adding cream until the mix was more gooey?

      Reply
      • Lisa

        November 06, 2015 at 4:14 pm

        The batter should be very thick. You don't want to add too much cream. Since you used a smaller amount of sweetener, it would be better to add a little more coconut oil or butter to the batter rather than cream for bulk. Also, cooking time is a factor. The shorter time, the denser it should be.

        Reply
    4.52 from 43 votes (10 ratings without comment)

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