Reese'S Peanut Butter Bars
["2 sticks margarine", "1 c. peanut butter", "1 3/4 c. graham cracker crumbs", "2 1/4 c. powdered sugar", "12 oz. chocolate chips"]
["Melt margarine.", "Add peanut butter and graham cracker crumbs. Gradually add powdered sugar.", "Pat into 13 x 9-inch pan.", "Melt chocolate chips and spread over peanut mixture.", "Let cool completely.", "Cut into bars.", "Can be made in microwave."]
["margarine", "peanut butter", "graham cracker crumbs", "powdered sugar", "chocolate chips"]