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keto peanut butter mug cake

Keto Peanut Butter Mug Cake

A keto peanut butter mug cake that's fluffy and full of peanut butter flavor. Pop in the microwave for 1 minute for this mug cake recipe and you're done! Toss in a few sugar free chocolate chips for extra flavor. This mug cake is only 4g net carbs for the entire mug cake to calm your sweet cravings while on the keto, low carb diet.
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Prep Time 5 mins
Cook Time 1 min
0 mins
Total Time 6 mins
Course Dessert
Cuisine American
Servings 1 mug cake
Calories 289 kcal


  • 2 tablespoon blanched almond flour
  • 1 tablespoon coconut flour
  • 1 tablespoon granulated sweetener
  • 1/4 teaspoon baking powder
  • 1/8 teaspoon salt
  • 1 large egg
  • 1 tablespoon sugar free peanut butter
  • 1/4 teaspoon vanilla extract ((optional))
  • 1 serving lily's chocolate chips (Use salted caramel flavor!)


  • In a mug or bowl add in egg, peanut butter and vanilla extract
  • Next, toss in almond flour, coconut flour, granulated sweetener, baking powder and salt
  • Mix all ingredients until blended smooth and even
  • Toss in chocolate chips
  • Microwave for 1 minute and add more time if needed in 15 second rounds
  • cool then serve


Helpful Recipe Tips

  • You may need more than 1 minute for the center to finish. I've made this recipe several times and sometimes 1 minute is enough others I need an extra 15 seconds.
  • If not sweet enough add a couple drops of liquid monk fruit or stevia. Lily's chocolate chips are my go to chips to use in this recipe.
  • Make a peanut butter topping by thinning the peanut butter out with melted butter. Such as in the pictures.


Nutrition Facts
Keto Peanut Butter Mug Cake
Amount Per Serving
Calories 289
* Percent Daily Values are based on a 2000 calorie diet.
Keyword keto mug cake
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