Peanut Butter Bars
["1/2 c. butter", "1 lb. box powdered sugar", "1 c. peanut butter", "1 (12 oz.) pkg. chocolate chips"]
["Melt butter in 2-quart saucepan.", "Add peanut butter and stir still creamy.", "Stir in powdered sugar until hot and coarse.", "Press into buttered 9 x 13-inch pan.", "Pour chocolate chips on top and melt.", "Refrigerate."]
["butter", "powdered sugar", "peanut butter", "chocolate chips"]