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Flourless mug cake, keto, gluten-free and sugar free

This flourless chocolate cake in a mug is ready in less than 5 minutes. It is keto friendly and can be sugar free. You don't even need to use chocolate, it will still taste good.
Prep Time3 mins
Cook Time2 mins
Total Time5 mins
Course: Breakfast, Dessert, Snack
Cuisine: American
Keyword: cake, chocolate, flourless, gluten free, keto, mug cake, sugar free
Servings: 1 people
Calories: 191kcal


  • 2 tbsp ground flax seeds
  • 1 tbsp cocoa
  • 1 tbsp coconut oil
  • 1 whole egg
  • a pinch of salt
  • ½
    tsp baking powder
  • 2 servings of stevia (or 2 tbp of honey)


  • In a wide, big mug add all dry ingredients first and whisk them.
  • Add wet ingredients and stir until the texture is smooth and there are no lumps. You can use a mixer instead of a spoon.
  • Bake in a microwave for 1.5 minutes at the highest temperature. Use the toothpick to test if the cake is baked enough. If necessary, bake it for an additional half of minute.


You can use any type of sweetener, instead of stevia.
Adding chocolate to this cake is optional, even without chocolate it tastes like a brownie.