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5.0 from 144 votes

Keto Peanut Butter Mug Cake

Sometimes only a moist, fluffy Keto peanut butter mug cake will do! This sugar free, low carb microwave dessert recipe takes 4 minutes from start to finish. Dairy-free option!

Prep Time
3 mins
Cook Time
3 mins
Total Time
4 mins
Servings: 2
Calories: 280 kcal
Course: Dessert
Cuisine: British

Ingredients

  • 2 tablespoon peanut butter soft
  • 1 ½ tablespoon coconut flour
  • 1 ½ tablespoon powdered sweetener  add an additional ½ teaspoon if you have a sweet tooth
  • 3 tablespoon heavy cream or coconut cream for dairy free
  • 1 egg medium
  • ¼ teaspoon baking powder
  • 1 tbsp dark chocolate, chopped or sugar free chocolate chips optional

Instructions

    Cup of Yum
  1. Mix all ingredients in a tall glass or mug, using a fork. Fold in the chocolate last, if using.
  2. Microwave on high for up to 90 seconds. Check after 50 seconds and continue with 10-second bursts until the cake peels away from the mug and the centre is cooked.

Notes

  • For best results, make sure your peanut butter is soft. Almond butter also works. 
  • See the tips in the post about the choice of vessel. It's also possible to use 2 ramekins. 
  • Optional tweaks: ½ teaspoon vanilla extract, 1 teaspoon cinnamon
  • Decorate with whipped cream or coconut cream and chocolate chips (decoration is not included in the nutrition details).
  • The cake is best enjoyed warm. 
  • Nutrition (3.6 net carbs p.p.) is calculated on the basis of 2 people sharing - this cake is VERY filling. 

Nutrition Information

Calories 280kcal (14%) Total Carbohydrates 7.2g Protein 10.3g (21%) Fat 22.9g (35%) Saturated Fat 9g (45%) Polyunsaturated Fat 5g Monounsaturated Fat 6.1g Fiber 3.6g (14%) Sugar 3.4g (7%)

Nutrition Facts

Serving: 2Serving

Amount Per Serving

Calories 280

% Daily Value*

Calories 280kcal 14%
Total Carbohydrates 7.2g 2%
Protein 10.3g 21%
Fat 22.9g 35%
Saturated Fat 9g 45%
Polyunsaturated Fat 5g 29%
Monounsaturated Fat 6.1g 31%
Fiber 3.6g 14%
Sugar 3.4g 7%

* Percent Daily Values are based on a 2,000 calorie diet.