Ingredients

  • 2 cups all-purpose flour
  • 2 cups sugar
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup water
  • 1/2 cup butter, cubed
  • 1/2 cup creamy peanut butter
  • 1/4 cup baking cocoa
  • 3 large eggs, room temperature
  • 1/2 cup sour cream
  • 2 teaspoons vanilla extract
  • 3 cups confectioners' sugar
  • 1/2 cup creamy peanut butter
  • 1/2 cup 2% milk
  • 1/2 teaspoon vanilla extract
  • 1/2 cup chopped salted or unsalted peanuts

Method

  • Preheat oven to 350°. Grease a
  • In a large bowl, whisk flour, sugar, baking soda and salt. In a small saucepan, combine water, butter, peanut butter and cocoa; bring just to a boil, stirring occasionally. Add to flour mixture, stirring just until moistened.
  • In a small bowl, whisk eggs, sour cream and vanilla until blended; add to flour mixture, whisking constantly. Transfer to prepared pan. Bake until a toothpick inserted in center comes out clean, 25-30 minutes.
  • Prepare frosting while cake is baking. In a large bowl, beat confectioners' sugar, peanut butter, milk and vanilla until smooth.
  • Remove cake from oven; place on a wire rack. Immediately spread with frosting; sprinkle with peanuts. Cool completely.