Ingredients

• 3.5 cups all-purpose flour
• 2.25 teaspoons baking powder
• 0.75 teaspoons salt
• 0.75 cups butter , softened
• 1.5 cups packed brown sugar
• 0.75 cups white sugar
• 3 eggs
• 1 egg yolk
• 2 teaspoons vanilla extract
• 6 tablespoons peanut butter
• 2 cups semisweet chocolate chips
• 0.5 cups butter , softened
• 1 cup peanut butter
• 3 cups confectioners' sugar
• 0.33 cups milk

Instructions

1. 1 Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13 inch baking dish. Sift together the flour, baking powder and salt; set aside.
2. 2 In a large bowl, cream together 3/4 cup of butter, brown sugar and white sugar until light and fluffy. Beat in the eggs and yolk one at a time, then stir in the vanilla and 6 tablespoons peanut butter. Blend in the sifted ingredients and stir in the chocolate chips. Press the mixture evenly into the prepared pan.
3. 3 Bake in the preheated oven for 25 to 30 minutes, or until a toothpick inserted into the center comes out with moist crumbs. Cool completely before frosting.
4. 4 To make the frosting, mix the remaining 1/2 cup of butter and 1 cup peanut butter together in a medium bowl. Mix in the confectioners sugar until smooth, then gradually stir in milk until a spreadable consistency is reached. Cut, serve and enjoy!

Nutrition per serving