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Banana Cupcakes with Peanut Butter Frosting

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This fun recipe for banana cupcakes with peanut butter frosting takes two favorite flavors and puts them together in one delicious dessert! Oh, and it’s a great way to use up leftover bananas.

Ingredients

Scale
  • 1 1/4 cups  flour
  • 1 1/2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 2 ripe large bananas, peeled
  • 1/2 cup sour cream
  • 1 1/2 teaspoons vanilla extract
  • 3/4 cup sugar
  • 1/2 cup  butter, room temperature
  • 1 large egg
  • 1 large egg yolk
  • 1 1/2 cups confectioner’s sugar
  • 1 8-ounce package cream cheese, room temperature
  • 1/2 cup butter, room temperature
  • 1/2 cup smooth peanut butter
  • Chopped peanuts for garnish (optional)

Instructions

  1. Preheat to 350° and line a 12 cup muffin tin with paper liners.
  2. Put flour, baking powder, baking soda, and salt in a mixing bowl and stir with a whisk to mix it all up thoroughly.
  3. Get out the frustrations of the day by mashing the bananas with fork or a potato masher in a separate bowl. Stir sour cream and vanilla into bananas.
  4. Beat the sugar and butter until light and fluffy, about 3 minutes. Add egg and egg yolk and beat until well blended. Add flour mixture alternately with banana-sour cream mixture, beginning and ending with flour mixture.  Divide batter among muffin cups.
  5. Bake cupcakes until toothpick inserted into center of each comes out clean, about 20 minutes. Transfer cupcakes to rack and let cool completely.
  6. Now for the frosting! Sift the confectioners sugar into a large bowl. Add cream cheese, butter, and peanut butter and beat everything together until it is nice and smooth. You can either spread the frosting over the top of the cupcakes with a knife, or have fun with your favorite frosting/piping bag.  Sprinkle some chopped peanuts on top if you like, and stand back and watch those cupcakes go!