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Chocolate Chip Peanut Butter Mug Cake

Chocolate chip peanut butter mug cake in a white mug with ice cream and a spoon
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This easy Chocolate Chip Peanut Butter Mug Cake comes together in a snap and will satisfy all your sweet + salty cravings! Made with creamy peanut butter, every bite of fluffy cake is full of melty semi-sweet chocolate chips.

Ingredients

  • 2 tablespoons creamy peanut butter
  • 1 egg yolk
  • 1 tablespoon oil (I used olive oil)
  • 4 tablespoons milk
  • 1/2 teaspoon pure vanilla extract
  • 2 tablespoons brown sugar
  • Small pinch of kosher salt
  • 23 tablespoons semisweet chocolate chips
  • 4 tablespoons all purpose flour
  • 1/2 teaspoon baking powder

Instructions

Mix wet ingredients. In a large microwave-safe mug, combine the peanut butter, egg yolk, oil, milk, vanilla, brown sugar, salt, and chocolate chips. Mix well.

Add dry ingredients & mix well. Add the flour and baking powder. Mix just until there are no dry ingredients visible. Make sure you get into the nooks of the mug so that no dry ingredients get stuck at the bottom. Don’t overmix or the cake will be chewy instead of fluffy.

Bake. Microwave for 2 minutes 30 seconds. Cook time will vary according to your microwave so check at the 2-minute mark. The cake is done when there is no wet batter on top and it springs back slightly when you press it gently with a finger.

Cool a few minutes, it will be hot!

Serve. Add vanilla ice cream or whipped cream if desired.

Keywords: chocolate chip mug cake, peanut butter mug cake, easy mug cake