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This is a photo of a KETO PEANUT BUTTER MUG CAKE

keto peanut butter mug cake

A single serving microwave keto peanut butter mug cake that is only three ingredients. It’s quick, easy and is also keto-friendly, low carb, wheat flour free, and gluten free.
Prep Time 5 mins
Cook Time 1 min
Total Time 6 mins
Course Dessert
Cuisine American
Servings 1
Calories 318 kcal


  • Microwave


  • 2 ½ Tbsp natural creamy unsalted peanut butter
  • 2 ½ tsp Natural Mate All Purpose Granular Stevia or sugar substitute of your choice equivalent to 1 Tbsp + 2 tsp sugar
  • 1 pc large egg


  • In a microwave-safe mug that can hold at least 12 oz of liquid, add all ingredients. Mix with a whisk until batter is completely smooth and egg is fully incorporated with no egg streaks remaining. Your batter should look like melted peanut butter.
  • Cook in the microwave at full power for about 1 minute. I used a 1000 watt microwave.


You may need to adjust cooking time and power if your microwave is a different wattage. Cake is best enjoyed warm.


Calories: 318kcal
Keyword easy mug cake recipe, keto mug cake, keto mug cake recipes, KETO PEANUT BUTTER MUG CAKE
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