Flourless Peanut Butter Mug Cake

Prep Time: 4 minutes
Cook Time: 1 minute
Total Time: 5 minutes
Course: Dessert
Cuisine: American
Servings: 1

This easy mug cake is moist, soft and peanut buttery.


  • 2 tbsp peanut butter use store bought and not natural
  • 1/2 of a whisked large egg about 1 1/2 - 2 tbsp
  • 1/2 tbsp granulated sugar
  • 1/2 of a large overripe mashed banana
  • 1/4 tsp baking powder


  1. Whisk all ingredients in a microwave-safe mug until batter is smooth and no banana chunks remain.

  2. Cook in microwave for approximately 1 minute and 20 seconds, or until batter is cooked and no longer gooey. Careful not to overcook. I started with 1 minute, and then added another 20 seconds. Let cool slightly in mug before eating. You can also dump out onto a plate and serve topped with salted caramel sauce.

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