Kirbie's Cravings

Fancy Flourless Chocolate Mug Cake

photo of a small flourless chocolate cake on a plate

Flourless chocolate cake in less than 2 minutes. And you can plate it so no one even knows it was made in a mug with a microwave.

I mentioned in my Flourless Nutella Mug Cake post that I got the idea for that recipe from a flourless chocolate mug cake recipe. So of course I had to check out the original. Unlike all the other mug cakes I’ve made, these cook up into almost perfect cylinders so you can pop it out and it looks very fancy.
flourless chocolate cake on a plate with fresh strawberries
You can dress it up with some powdered sugar but I left my plain and served them with some strawberries. The cake tastes just like a baked version of flourless chocolate cake. Not the kind that has the lava center, but still really good.
flourless chocolate cake
I have to admit, I like the Nutella version better because I’m such a Nutella addict but the chocolate version is pretty good too. And the nice thing about this dessert is the presentation. You can serve it at a dinner party or to a loved one and let them think you slaved away in the kitchen when in fact it takes less than 5 minutes.
photo of a flourless chocolate cake on a plate with strawberries and a mug in the background
The original recipe is meant to make 2 cakes, but I know some people find it a hassle to split an egg and divide all the ingredients into two mugs. So I tried making it as a single serving without having to split an egg or any ingredients and it still worked. Also, I simplified instructions, to make it almost all one step and it also still works. My version doesn’t end up with the self-serving sauce, but it still tastes good.
Flourless chocolate cake with fresh strawberries

You might like my Nutella Mug Cakes, too!

Fancy Flourless Chocolate Mug Cake

Servings: 1 mug cake
Prep Time: 4 minutes
Cook Time: 1 minute
Total Time: 5 minutes
Course: Dessert
Cuisine: American
Flourless chocolate cake in less than 2 minutes. And you can plate it so no one even knows it was made in a mug with a microwave.
5 from 10 votes


  • 1 egg beaten
  • 1/2 tsp vanilla extract
  • 1 tbsp heavy cream
  • 2 tbsp cocoa powder
  • 2 tbsp sugar
  • 1/4 tsp baking powder
  • 1 tsp oil


  • In a coffee mug, combine the egg, vanilla, cream, cocoa powder, sugar, baking powder, and oil.
  • Place the mug in the microwave and cook it for approximately one minute and 20 seconds, or until the middle of the cake is cooked which you can check with a toothpick.
  • To plate, turn the mug over on a plate to remove the cake. Serve warm.


Recipe slightly adapted from No Recipes

The nutrition information provided are only estimates based on an online nutritional calculator. I am not a certified nutritionist. Please consult a professional nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.

Did you make this recipe?I'd love to see it! Mention @KirbieCravings and tag #kirbiecravings!

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57 comments on “Fancy Flourless Chocolate Mug Cake”

  1. is there a substitute for heavy cream??

  2. Wow! I was very skeptical about the egg as the main ingredient. I’m not a huge egg fan to begin with, but this didn’t taste eggy at all! Very impressed! I too am eating low carb, low sugar so I substituted the sugar for a TBLS or Allulose and a bit of liquid Stevia. It had a nice, rich, chocolatey flavor with a spongey cake like texture. I will definitely use this again. Thanks for the recipe!

  3. Will it still work without baking powder

    • You need a little bit of leavening for the cake to puff up. If you leave it out it the cake might be denser and flat.

  4. This is absolutely delicious! I am newly gluten free for my endometriosis and I stumbled upon this recipe. I am shocked at the wonderful texture that this mug cake has. Thank you for giving me a little sweet to look forward to every once and a while! 🙂 Also the deep chocolate flavor is spot on !

  5. This was awesome!!! I split the batter in 2 and added the first lot, I put chocolate chips in the bottom and added the rest. It turned out soooo…. good!!! Thank You so much for this recipe.

  6. ended up being a chocolate scrambled egg 

  7. I think I used dark chocolate cocoa powder. but in other words this tasted amazing can’t wait to do it again

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