Best Keto Chocolate Mug Cake

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  • prep time

    prep time

    5 min

  • cook time

    cook time

    1 min

  • ready time

    ready time

    6 min

Best Keto Chocolate Mug Cake

258 ratings

If you need a quick fix for low carb chocolate cake, you have come to the right place. This Keto chocolate mug cake recipe is super quick and easy to prepare and bake. The batter can be quickly beaten in a coffee mug and microwaved for just 1 minute. No dirtying any extra dishes and it is oh, so chocolatey and good.

Is Unsweetened Cocoa Powder Keto Friendly?

Chocolate in its typical candy bar form is often laden with sugar and not approved for a Keto diet. But that doesn’t mean you can’t still enjoy the flavor of chocolate whilst maintaining a low carb diet. To create the best Keto chocolate mug cake recipe, we have used unsweetened baking chocolate and just a hint of 100% cocoa powder. Combined with low carb sweetener, this creates all the decadence and richness of a chocolate dessert without the refined sugars.

Tips for Crafting the Ultimate Mug Cake

We have opted for almond flour to create our Keto mug cake recipe. Once combined with the remaining ingredients, you have the perfect mug cake batter. Of course, the success of any cake is in the baking and retaining a soft and moist sponge. In order to achieve the perfect sponge, the cooking time is crucial. Microwave for no more than 50-60 seconds to ensure a soft and moist cake.

  • Net Carbs

    5.2 g

  • Fiber

    7.9 g

  • Total Carbs

    49.2 g

  • Protein

    13.7 g

  • Fats

    38.2 g

433 cals

Best Keto Chocolate Mug Cake

#1 Low Carb & Keto Diet App Since 2010

Track macros, calories, and access top Keto recipes.

Download on the App Store
Get in on Google Play


  • Butter


    1 tablespoon

  • Unsweetened Baking Chocolate Bar by Baker's

    Unsweetened Baking Chocolate Bar by Baker's

    1 ounce

  • The Ultimate Icing Sugar Replacement by Swerve

    The Ultimate Icing Sugar Replacement by Swerve

    4 tablespoon

  • Baking Powder

    Baking Powder

    ½ teaspoon

  • Almond Flour

    Almond Flour

    2 tablespoon

  • 100% Cocoa Special Dark by Hershey's

    100% Cocoa Special Dark by Hershey's

    1 teaspoon

  • Raw Egg

    Raw Egg

    1 large

  • Vanilla Extract

    Vanilla Extract

    ¼ teaspoon

Recipe Steps

steps 4

6 min

  • Step 1

    Start by selecting a tall coffee mug. Break the chocolate into chunks and add to the mug along with the butter. Microwave for 30 seconds or until completely melted. Stir together to combine.
    Step 1
  • Step 2

    Add the sweetener, baking powder, almond flour, cocoa powder and a pinch of salt to the mug. Beat the dry ingredients into the wet ingredients. Crack the egg into the mug and add the vanilla extract. Beat together until well combined.
    Step 2
  • Step 3

    Transfer to the microwave and cook for 50-60 seconds. Be sure not to overcook the cake because it will become dry quickly. The cake will puff considerably, do not be alarmed!
    Step 3
  • Step 4

    Once your Keto chocolate mug cake is cooked you can allow it to cool a little before serving. Why not try topping with whipped cream and a dusting of cocoa powder. If you are feeling extra indulgent, serve with a scoop of your favorite Keto ice cream.
    Step 4

Comments 31

  • Nursebecky2006

    Nursebecky2006 3 months ago

    OMG I miss the chocolate lava cakes from Jack in the box and this suffices!!! delicious!! I used coconut flour instead

    • AwesomeMacadamia228618

      AwesomeMacadamia228618 5 months ago

      Yum! I did not add extra sweetener and used Lilly’s dark chocolate, it was not too sweet.

      • MarvellousMacadamia550433

        MarvellousMacadamia550433 6 months ago

        Wonderful dessert! Think I would use a little less sweetner next time! Definitely would try again.

        • MirthfulMacadamia118611

          MirthfulMacadamia118611 8 months ago

          Absolutely beautiful! Definitely on my go to list! 😃 I used coconut flour instead of almond! 😃

          • s.aina.f.k.

            s.aina.f.k. 9 months ago

            absolutely amazing!!

            • PropitiousMacadamia910351

              PropitiousMacadamia910351 a year ago

              Tasted amazing! Was a bit too sweet though when i used Lankato erithritol, so next time I’ll use a bit less sweetener.

              • BeccaJade24

                BeccaJade24 a year ago

                Perfect for my craving today!

                • SplendidAvocado800614

                  SplendidAvocado800614 a year ago

                  A good chocolate fix, served it with real whipped cream on top.

                  • KetoPotato90

                    KetoPotato90 a year ago

                    I LOOVE this❤️ i make this very often and because it can be a bit dry, i put some unsweetened almond milk over it. Or heavy cream😬

                    • s.aina.f.k.

                      s.aina.f.k. 9 months ago

                      u might be over cooking it if it’s dry!

                  • Cmbr1109

                    Cmbr1109 a year ago

                    Can it be possible… a bit too much chocolate for me. May try closer to holidays when chocolate cravings are big.

                    • candiknell40ca

                      candiknell40ca a year ago

                      Amazing!! Total game changer.. the best one I have tasted

                      • AwesomeKale662776

                        AwesomeKale662776 a year ago

                        OMG.... Just perfect

                        • Sue

                          Sue a year ago

                          Yum delicious

                          • IneffableKetone249934

                            IneffableKetone249934 2 years ago

                            This was heavenly! I used half the sugar and I use monk fruit! I Put a little whipped cream on it after it cooled a bit. My kids even loved it and wanted one too.

                            • FortuitousKale597482

                              FortuitousKale597482 a year ago

                              There is no added sugar. Did u substitute cocoa for monk fruit???.??

                          • verowero

                            verowero 2 years ago

                            Oh. My. God. Thanks baby Jesus. This is better than regular chocolate cake. I under baked it just a bit and Lordy lord.

                            • Elissamarie1971

                              Elissamarie1971 2 years ago

                              Rich and Decadent. Made exactly as the recipe states (see note below about using sweeteners). It is very important to not over cook - it should still look like it is not cooked, but be firm with a spoon, otherwise it will be dry and inedible! For those saying it is too sweet, try using two different types of sweetener. When using sugar alternatives, it always helps to use at least two, as they are all a bit different, and the off-tastes that each have will counter act one another leaving a perfect balance of sweet without any after taste or strange mouthfeel. I used allulose and erythritol here. For us, it was exactly like a lava cake! Definitely a very large serving; my husband and I both agreed next time we can share one. Thank you for the recipe!


                       2 years ago

                                Dry not good to me

                                • FortuitousKale597482

                                  FortuitousKale597482 a year ago

                                  If he might have over cooked it how do you tell? The toothpick test?

                                • Shopper4976

                                  Shopper4976 2 years ago

                                  It depends on the strength of the microwave. You might of over cooked.

                              • ExcellentKetone874580

                                ExcellentKetone874580 2 years ago

                                My microwave was suddenly not working. Melted the butter and chocolate in sauce pain. Mixed all ingredients plus a tablespoon of heavy whipping cream. Baked at 350 for 20 min. It was actually better than microwaved!

                                • FantasticAvocado472800

                                  FantasticAvocado472800 10 months ago

                                  Thank you. I do not use a microwave, so this was very helpful.

                              • Katim8768

                                Katim8768 2 years ago

                                I only did 2Tbsp of swerve. So yummy!

                                • StupendousCauliflower952778

                                  StupendousCauliflower952778 2 years ago

                                  Easy, rich but delicious

                                  • Petra Maiwald

                                    Petra Maiwald 2 years ago

                                    Easy to make and delicious ❤️❤️

                                    • UnbelievableAvocado555528

                                      UnbelievableAvocado555528 2 years ago

                                      Gross. Waaaay too sweet. 🤢 Bottom was uncooked. I used coconut flour in place of almond flour .. don't know how to make less sweet and stil have a good consistency.

                                      • Shopper4976

                                        Shopper4976 2 years ago

                                        Can't use a 1:1 ratio when substituting coconut flour for almond flour.

                                      • GorgeousAvocado2000

                                        GorgeousAvocado2000 2 years ago

                                        I added less sweetner and extra flour to get the same consistency. Also for the uncooked part try using shorter containers with a bigger diameter. It helps distribute the heat and cook evenly

                                    • Red fox 69

                                      Red fox 69 2 years ago

                                      I made this a bit dry used a table spoon less of,sweetener toped with mascarpone. Only ate 2/3

                                      • Rachinikul

                                        Rachinikul 2 years ago

                                        I have made this menu for birthday cake. It was too sweet. My toung was burn from the sweetness.