Peanut Butter Fingers
["1/2 c. margarine", "1/2 c. white sugar", "1/2 c. brown sugar", "1 unbeaten egg", "1/3 c. peanut butter", "1/4 tsp. vanilla", "1 c. flour", "1/2 tsp. baking soda", "6 oz. chocolate chips"]
["Cream margarine and sugars.", "Blend in next 3 ingredients, then flour and soda.", "Spread in a 9 x 13-inch pan.", "Bake at 350\u00b0 for 20 to 25 minutes.", "Remove from oven and sprinkle chocolate chips on top.", "Allow to melt and spread as frosting.", "Cut into 1 x 3-inch fingers."]
["margarine", "white sugar", "brown sugar", "egg", "peanut butter", "vanilla", "flour", "baking soda", "chocolate chips"]