Rice Krispies Treats
["1/4 c. margarine", "1 (10 oz.) pkg. regular marshmallows or 4 c. miniature marshmallows", "6 c. Rice Krispies cereal", "1/4 c. peanut butter (optional)"]
["Melt margarine in a large saucepan over low heat.", "Add marshmallows and stir until completely melted.", "Remove from heat. Add peanut butter, if desired.", "Add Rice Krispies cereal.", "Stir until well coated.", "Using buttered spatula or waxed paper, press mixture evenly into buttered 13 x 9 x 2-inch pan.", "Cut into squares when cool."]
["margarine", "regular marshmallows", "Rice Krispies", "peanut butter"]