Ingredients
3/4 cup creamy peanut butter1/2 cup butter, softened1 cup sugar1/2 cup packed brown sugar4 eggs2 teaspoons vanilla extract2 cups all-purpose flour3/4 teaspoon baking soda1/2 teaspoon baking powder1/4 teaspoon salt3/4 cup buttermilkCREAMY CHOCOLATE FROSTING:1/4 cup butter, softened3-1/2 cups confectioners’ sugar1/2 cup baking cocoa6 tablespoons milk1-1/2 teaspoons vanilla extract1/4 teaspoon salt
Preparation
In a large bowl, cream the peanut butter, butter and sugars until light and fluffy. Beat in eggs and vanilla. Combine the flour, baking soda, baking powder and salt; add to the creamed mixture alternately with buttermilk, beating well after each addition. Fill paper-lined cups two-thirds full.
Bake at 350° for 24-26 minutes or until a toothpick inserted in the center comes out clean. Cool for 10 minutes before removing from pans to wire racks to cool completely.
For frosting, in a small bowl, cream butter until light and fluffy. Gradually beat in the sugar, baking cocoa, milk, vanilla and salt. Frost cupcakes.