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Peanut Butter Cake with Peanut Butter Frosting Recipe

Peanut Butter Cake with Peanut Butter Frosting Recipe

4.8 from 17 reviews

Indulge in the rich, nutty flavors of this Peanut Butter Cake with Peanut Butter Frosting. A moist and decadent cake that’s perfect for any occasion, especially for peanut butter lovers.

Ingredients

Units Scale

For the cake:

  • 1 3/4 cups all-purpose flour
  • 2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 1 cup creamy peanut butter
  • 1 cup granulated sugar
  • 1/2 cup brown sugar
  • 3 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup whole milk

For the frosting:

  • 1/2 cup unsalted butter, softened
  • 1 cup creamy peanut butter
  • 2 cups powdered sugar
  • 24 tablespoons milk
  • 1/2 teaspoon vanilla extract
  • pinch of salt

Instructions

  1. Preheat oven to 350°F. Grease and flour a 9×13-inch baking dish.
  2. In a bowl, whisk together flour, baking powder, baking soda, and salt. In a large mixing bowl, cream together butter, peanut butter, granulated sugar, and brown sugar until light and fluffy. Beat in eggs one at a time, then mix in vanilla. Add flour mixture in three parts, alternating with the milk, beginning and ending with flour. Mix just until combined. Pour batter into prepared dish and smooth the top.

  3. Bake for 30–35 minutes or until a toothpick inserted in the center comes out clean. Let cool completely.
  4. For the frosting, beat butter and peanut butter until smooth. Gradually add powdered sugar, milk, vanilla, and salt, beating until fluffy and spreadable. Frost the cooled cake and serve.

Notes

  • Top with chopped peanuts or chocolate chips for added texture.
  • This cake stores well covered at room temperature for up to 3 days.

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