Ingredients
1/3 cup shortening1/2 cup peanut butter1-1/2 cups packed brown sugar2 large eggs1 teaspoon vanilla extract1-1/2 cups all-purpose flour1-1/2 teaspoons baking powder1/2 teaspoon salt1/4 cup milkFROSTING:2/3 cup creamy peanut butter1/2 cup shortening4 cups confectioners’ sugar1/3 to 1/2 cup milkTOPPING:1/4 cup semisweet chocolate chips1 teaspoon shortening
Preparation
In a large bowl, cream the shortening, peanut butter and brown sugar until light and fluffy. Beat in eggs and vanilla. Combine the flour, baking powder and salt; gradually add to creamed mixture alternately with milk, beating well after each addition.
Transfer to a greased 15x10x1-in. baking pan. Bake at 350° for 16-20 minutes or until a toothpick inserted in the center comes out clean. Cool on a wire rack.
For frosting, in a small bowl, cream the peanut butter, shortening and confectioners’ sugar until light and fluffy. Gradually beat in enough milk to achieve spreading consistency. Frost bars.
In a microwave, melt chocolate chips and shortening; stir until smooth. Drizzle over frosting. Store in the refrigerator.