Low Calorie Mug Cake | The Best Easy Mug Cake Recipe

Chocolate cake in a white mug that is set on a wooden cutting board surrounded by a glass of milk, a blue napkin, a red and white straw, and a piece of chocolate.

5 from 14 reviews

This low calorie mug cake is rich, decadent, so chocolatey, and only takes 5 minutes to make! And along with being easy and delicious, this cake in a mug has just 150 calories with 5 NET CARBS. Plus, it is a gluten free mug cake and made with no flour or sugar! 


1/2 Scoop (15g) Vanilla protein powder (best results are made with a casein/whey blend - it bakes the best)

2 Tbsps (10g) cocoa powder

2 Tbsps (20g) Confectioners Swerve (or monk fruit)

1/4 Tsp baking powder

1 Large Egg

2 Tbsp (25g) Unsweetened apple sauce

Pinch of salt


  1. Add the dry ingredients to a small bowl, and whisk until combined.
  2. In another small bowl, add the egg and apple sauce and combine with a whisk until well incorporated with one another.
  3. Pour the wet ingredients into the dry ingredient bowl and use a spatula to mix them until a thick chocolate batter forms.
  4. Coat a ramekin - or mug- with baking spray and pour batter into it.
  5. Bake in the microwave for around 30 seconds, check to see how it's baking, then bake for another 20-30 seconds (the center should look ever so slightly wet - it will continue to bake as it cools).
  6. Cool for 3-5 minutes and enjoy!


Bake in the oven for around 17-20 minutes.

I recommend pulling it out when the center is just ever so slightly gooey.


The scale up function does not change the gram measurements.


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