Fluffernutter Cupcakes

13 ingredients
4 steps

Ingredients

  • 18.25 oz box yellow cake mix
  • 1 1/3 cups water
  • 1/3 cup smooth peanut butter
  • 1/3 cup vegetable oil
  • 3 eggs
  • 1 teaspoon vanilla extract
  • Frosting:
  • 2 sticks salted butter, at room temperature
  • 1 cup smooth peanut butter
  • 1 teaspoon vanilla
  • 1/4 cup milk
  • 4 cups powdered sugar
  • 7 oz jar marshmallow creme

Directions

  1. 1
    1. Preheat oven to 350. Line 24 muffin tins with cupcake liners.
  2. 2
    2. In a large mixing bowl, combine cake mix, water, peanut butter, vegetable oil, eggs and vanilla. Beat on low speed for about a minute. Increase speed to medium and beat for 2 minutes more, scraping sides of bowl as needed. Fill liners 2/3 full and bake for 15 - 20 minutes or until tops spring back when lightly touched. Remove cupcakes from pan and cool on cooling rack.
  3. 3
    3. Once cupcakes are completely cool, prepare frosting: In a large mixing bowl, beat butter, peanut butter, vanilla, and milk on medium-low speed until smooth. Slowly add powdered sugar, beating on low until just barely mixed in. Increase speed to medium high and beat for about 2 minutes. Using a rubber spatula, barely fold in marshmallow creme (you don't want it mixed completely inyou want to see swirls).
  4. 4
    4. Pipe frosting or frost with a spatula generously.

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