Peanut Butter Cups
["12 oz. jar peanut butter", "1 (16 oz.) box powdered sugar", "1 1/2 sticks margarine, melted", "2 (8 oz.) pkg. chocolate chips"]
["Mix peanut butter, powdered sugar and margarine; pat into bottom of 9 x 13-inch pan.", "Melt chocolate and smooth over top. Chill.", "Cut in squares."]
["peanut butter", "powdered sugar", "margarine", "chocolate chips"]