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A moist, flourless keto peanut butter mug cake on a white plate, with a piece on a spoon ready to be enjoyed. A mug with ‘Have A Mug Cake’ written on it is partially visible in the background.
Prep Time: 3 minutes
Cook Time: 1 minute
Total Time: 4 minutes
Servings: 1 servings
Net Carbs: 4.9g
Author: Rally Rus
Enjoy this quick and easy 3-Ingredient Keto Peanut Butter Mug Cake! It’s flourless, low carb, and sugar-free, ready in just 90 seconds. Perfect for satisfying your sweet tooth without breaking your keto diet!

Ingredients

  • 2.5 tablespoons natural peanut butter
  • 2 tablespoons swerve
  • 1 large egg
  • 1 tablespoon natural peanut butter for decoration (optional)

Instructions

  • In a small mixing bowl, whisk the egg until light and fluffy. This creates an airy texture in the mug cake.
  • Microwave the creamy peanut butter in a microwave-safe bowl for 15 seconds until soft. Be careful not to overheat.
  • Mix the sweetener into the melted peanut butter until smooth. Add the whisked egg and stir until fully combined.
  • Pour the mug cake batter into a large microwave-safe mug and microwave for 90 seconds. Cooking time may vary, so check for doneness.
  • Let the cake cool slightly before enjoying. Add toppings like sugar-free chocolate chips, whipped cream, or a drizzle of peanut butter sauce.

Notes

  • Use natural, unsweetened peanut butter for best keto results.
  • Adjust sweetness by adding more or less keto sweetener.
  • Microwave power varies—start with 90 seconds and check for doneness.
  • Add sugar-free chocolate chips for a chocolatey twist!

Nutrition Per 1 Serving

Serving: 1serving | Calories: 302.1kcal | Carbohydrates: 6.9g | Net Carbs: 4.9g | Protein: 14.4g | Fat: 24.7g | Saturated Fat: 5.5g | Fiber: 2g | Sugar: 4.4g

Recipe Link:

https://coachrallyrus.com/keto-recipes/3-ingredient-keto-peanut-butter-mug-cake/

By Rally Rus | Easy Keto Recipes & High Protein Low Carb Meals

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