Keto Chocolate Mug Cake recipe is delicious portion control dessert recipe for two! This keto cake is made in the microwave and is an easy recipe to have on hand when the sweet tooth craving hits and you don't want a whole cake.
I love small batch desserts, and mug cake recipes are the perfect way to make them. This low carb chocolate mug cake for two is a perfect valentine’s day dessert, or birthday cake solution for those following the ketogenic diet. It is has rich chocolate flavor, and is made in minutes!
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❤️ Why you'll love it
✔️ It is perfect for special occasions when you only want enough low carb dessert to feed two people.
✔️ This small batch dessert has only 6 grams of net carbs in a single serving.
✔️ It is a delicious quick and easy keto dessert that will cure chocolate cravings.
🥘 INGREDIENTS
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Almond meal or flour, either will work. Almond meal however is more coarse than flour. I usually use Bob’s red mill almond flour or Trader Joe's Almond meal.
Coconut Flour: I use this brand.
Coconut oil, to prevent the cake from sticking to the mug
Mayonnaise, always use full fat mayonnaise.
Unsweetened cocoa powder
Powdered monkfruit sweetener
Large eggs
Vanilla extract
🔪 Instructions
- Grease the mug with coconut oil.
- Place the sweetener, almond flour, coconut flour, cocoa powder, and baking powder in a 4-cup glass mixing bowl. Stir to combine.
- Whisk together the mayonnaise, egg, water, and vanilla extract. Add the liquid ingredients to the dry ingredients. Stir until the batter is smooth.
- Divide batter between two 4 ounce ramekins or 1 extra large microwave mug cake cup.
- Place the cake batter in the microwave and cook on high power for 2 minutes. If cake is still wet on top, microwave in 10 second intervals until no longer wet.
🥄 Equipment
Large Mug, the mug should be at least a 16 ounce capacity. This microwave-safe mug work perfectly.
This finger spatula works perfectly for mixing the mug cake ingredients together. It mixes and can scrape down the sides of the mug as well.
🥫Storage
Store any leftover cake in the fridge up to 4 days.
📖 Variations
- Use full fat sour cream in place of the mayonnaise.
- Substitute almond extract for the vanilla extract
- Serve the mug cake warm with whipped cream your favorite keto ice cream.
- Stir in 2 tablespoons sugar-free chocolate chips or peanut butter chips.
- Frost with a sugar-free Peanut Butter Frosting, Chocolate Buttercream, or Cream Cheese Frosting. (instructions for keto in each recipe)
- Sprinkle with these keto sprinkles!
💭 Tips
- If you don't have powdered sweetener, blend erythritol in a blender until it is a powder consistency.
- To prevent overcooking, start at the shortest microwave time (2 min). Microwave in 5 second intervals if the cake is still wet on top until it is no longer wet.
- Make your own whipped cream by mixing a cup of heavy cream together with 1 tablespoon of powdered monkfruit until cream forms stiff peaks.
- Slice the cake in half and add filling between the layers. This adds flavor, fat, and moisture!
- Sprinkle a few sugar free chocolate chips on top of the batter before cooking.
🙋 FAQ's
Yes, bake it at 350 degrees F. Check after 10 minutes, if still wet on top, bake another 5 minutes. The top should look dry and a toothpick inserted should come out clean.
📚 Related Recipes
Chocolate Raspberry Truffles is one of my favorite molded keto chocolate recipes.
The warm chocolate lava that oozes from this Chocolate Pudding Cake is so delicious.
This Keto Blueberry Creme Brulee is rich, creamy, and oh so delicious. It makes a great holiday occasion recipe or just because!
Chocolate Peanut Butter Cheesecake is a keto ice cream cake you won't regret making
This Keto Tiramisu is excellent for tiramisu fans.
Check out this round-up of Keto Valentine Recipes for more keto dessert ideas!
🍽 Serve with...
Serve this delicious recipe with a dollop of whipped cream or sugar free ice cream.
🏫 The last word
Low carb desserts really does have a science behind it and substitutions can be tricky. I don't recommend using something not listed in this post as a substitute. I have listed only what I know does work.
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When you make this recipe, please comment below and let me know what you think. I'd love it if you tag me on Instagram @grumpyshoneybunch or #grumpyshoneybunch so I can see your photos!
If you love this recipe, please leave a ⭐⭐⭐⭐⭐ rating
📖 Recipe
Keto Chocolate Mug Cake
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Ingredients
- 3 tablespoons powdered sweetener
- 4 tablespoons super fine almond flour
- 1½ tablespoons coconut flour
- 2 tablespoons dark cocoa powder
- 1 teaspoon baking powder
- ¼ cup mayonnaise
- 1 large Egg
- 2 tablespoons water
- ½ teaspoon vanilla extract
Instructions
- Place the sweetener, almond flour, coconut flour, cocoa powder, and baking powder in a 4-cup glass mixing bowl. Stir to combine.
- Add the mayonnaise, egg, water, and vanilla extract. Stir until the batter is smooth.
- Divide the batter between two 4 ounce ramekins or 1-16 ounce microwave mug cake cup.
- Place the cake batter in the microwave and cook on high power for 2 minutes. If cake is still wet on top, microwave in 10 second intervals until no longer wet.
Kim Hallock says
This mug cake was delicious!!!! Yummy!! Thank you for the wonderful recipe!!!!!!! Will definitely make this again!!!!!!
Shelby Law Ruttan says
Hi Kim, Thank you for coming back to let me know and for leaving a review! Shelby
Carmella Goodman says
My family and I have enjoyed a wonderful chocolate mayonnaise cake family recipe 6 times a year every year for 18 years. In this past year I have been informed that I am gluten intolerant. I finally figured out the relationship between excruciating joint pain and gluten. So thank you for giving me such a delightful cake that I can eat while the rest of my family enjoys the family tradition. It’s wonderful and it’s 2 servings and they are just for me. 😊
Shelby Law Ruttan says
Hi Carmella, I'm so happy that this works for you and you enjoyed the recipe! Thank you, Shelby
Melody says
This recipe looks really good bu if a person is on the keto diet to lose weight, the recommended carb intake per day is approximately 20 grams. So the 10 grams of carbs from this recipe is half a day’s worth of carbs.
Shelby Law Ruttan says
Hi Melody, this recipe is only 6 net carbs per serving and that is half of the cake (this makes 2 regular sized mug cakes or 1 large). The sugar alcohols and fiber are not counted as carbs. I hope you will try the recipe and come back and re-rate the recipe. Thank you! Shelby
Mandy says
I would love to make this as a cake to serve my family for my dad's birthday this weekend! Do you have an adaptable version for either a 8x8 or 9x11 cake? Thanks 🙂
Shelby Law Ruttan says
Hi Mandy, I am so sorry I didn't see this sooner! I do not have a larger version cake but will definitely be working on one! Thank you! Shelby
Vanessa says
Can I just use all almond flour? Will I need to tweak any measurements in that case?
Shelby Law Ruttan says
Hi Vanessa, the coconut flour does thicken it some. You could try it though. I can't guarantee how it would turn out. Next time I make it however, I will test it to see.
Dave R says
I was looking for a microwavable cake that my wife could make for a Tupperware Party. I saw this and thought, "Chocolate Mayonaise Cake?!?! WTH??" ... but I LOVE trying new foods, and things that sound like an oddity (like chocolate covered bacon).
I made this mug version to test out and OH MY FREAKIN' GOSH IS THIS DELICIOUS!!
Thank you for this amazing recipe that I will make again I'm sure.
Shelby Law Ruttan says
Hi Dave, thank you SO MUCH for leaving your comment to let me know how the recipe turned out for you. I am so happy you loved the recipe!
Calandra Arrington says
I have been living the keto lifestyle for 4 months and having been craving cake. I also wanted wantedto find a low carb recipe to make my bunny cake this Easter. I stumbled across this recipe and so glad I did. The cake was so moist and tasty. Cannot tell that it's low carb at all. I used cream cheese frosting as oppose to whipped cream (personal preference is all). Now I have to figure out how to make a much larger cake in the oven. I will be making this again!!!
Shelby Law Ruttan says
Hi Calandra, I'm so glad you enjoyed the recipe! Thank you for stopping by to share!
Renee says
do you think I could sub confectioners sugar for the sugar substitute? I know it won't be keto, but I don't use sugar substitute.
Shelby says
Hi Renee, if you don't eat keto, and want to use confectioners sugar, I believe it will turn out just fine. You could probably use granulated sugar also. You would use the same amount of regular sugar as the substitute.
Jenn says
Have you tried without using a microwave? We don’t use one? If so, what area the conversions.
Shelby says
Hi Jenn, Yes, I have made this without the microwave. Just bake it at 350. Check after 10 minutes, if still wet on top, bake another 5 minutes. The top should look dry and a toothpick inserted should come out clean. Thanks for stopping by!
Joanie says
I absolutely love this recipe! The cake is so moist and delicious - best of all, it's keto!!!
Shelby says
Thanks Joanie!
Marsha Maxwell says
Thanks for this recipe! My husband is on a low carb/keto diet, and this recipe is perfect!
Shelby says
Hi Marsha, your welcome and I hope your husband enjoys it!
Chrys says
I’m blown away with how easy and how insanely yummy this is! First, I chose to use one large ramekin. While waiting for it to cool, I whipped up some sugar free vanilla pudding with heavy cream to sandwich between the layers with a sprinkle of lankanto powdered monk fruit on top - a fabulous version of a whoopee pie. The next experiment was to simply make it and eat it warm. It reminded me of a chocolate lava cake without the lava, lol. There is really so much you can do with this recipe. How brilliant you are! Thanks for sharing this!
Shelby says
Hi Chrys! I'm so happy you stopped by and left a comment! So glad it turned out for you!!
Cassidy @ Cassidys Craveable Creations says
This cake looks so easy and delicious!!! I can't wait to try it!!
Shelby says
Thanks Cassidy, it is so fun too 🙂
Courtney O'Dell says
I cant believe how moist and perfect this cake is - such a great find!
Shelby says
Thanks Courtney!
Billy says
Wow does this cake looks super moist, I bet it's absolutely delicious!
Shelby says
Thanks Billy! It was so good, I may make it again this weekend and curl up with some of this cake, a fuzzy blanket, and a book! 🙂
Steph says
This looks heavenly. Can't wait to make it!
Shelby says
Thanks Steph, I hope you enjoy it!
Stef says
I have friends on the Keto diet and I never know what to make them for dessert. Bookmarking this for the next time they come over. It's perfect!!
Shelby says
It's great to make for just those "few" who may be around for dessert without having too much left over. I think it's great you think of your Keto friends! 🙂
Alli says
Loooooove this cake!! So easy and I can’t believe that the mayo makes it so good.
Shelby says
Thanks Alli! I love this cake and it is great I can now enjoy it in smaller portion size and not feel guilty! 🙂
Janice says
It was very good. But it overflowed, I guess I do not have a proper mug.
Shelby Law Ruttan says
Hi Janice, I use a large mug that was made for microwave cakes. I will update my post to indicate it should be divided between two mugs if you don't have a large one. I am sorry that happened to you. I'm glad you still enjoyed it!