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Peanut Butter Mug Cake

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This quick and easy peanut butter mug cake is soft, fluffy, and packed with rich peanut butter flavor. Made in minutes in the microwave, it’s the perfect single-serve dessert for satisfying sweet cravings fast.

Ingredients

  • 4 tablespoons all-purpose flour
  • 2 tablespoons granulated sugar
  • 1/4 teaspoon baking powder
  • Pinch of salt
  • 3 tablespoons milk
  • 2 tablespoons creamy peanut butter
  • 1 tablespoon vegetable oil or melted butter
  • 1/4 teaspoon vanilla extract
  • Optional chocolate chips for topping

Instructions

  1. Add the flour, sugar, baking powder, and salt to a microwave-safe mug and stir until combined.
  2. Add the milk, peanut butter, oil, and vanilla extract.
  3. Mix until the batter is smooth and no dry spots remain.
  4. Stir in a few chocolate chips if desired.
  5. Microwave on high for 60–90 seconds, depending on microwave strength.
  6. Let the cake cool for 1–2 minutes before serving.
  7. Enjoy directly from the mug or top with extra peanut butter, whipped cream, or chocolate sauce.

Notes

  • Use a mug that holds at least 12 ounces to prevent overflow.
  • Natural peanut butter works well when thoroughly stirred.
  • Substitute dairy milk with almond, oat, or soy milk if preferred.
  • Avoid overcooking to keep the cake soft and tender.
  • Store leftovers covered in the refrigerator for up to 1 day and reheat for 10–15 seconds.

Nutrition

Find it online: https://thefamilycooking.com/peanut-butter-mug-cake/