Ingredients 10 tablespoons butter room temperature, divided 1 1/2 cups brown sugar 1 3/4 cups powdered sugar 1 1/2 cups peanut butter 1 cup semi-sweet chocolate chips or milk chocolate chips Instructions Spray an 8-inch or 9-inch square baking pan with nonstick spray. SEE MORE Cream 5 tablespoons butter, brown sugar, and powdered sugar until smooth. Stir in […]