1/2 cup margarine 1/2 cup peanut butter 1/2 cup sugar 1/2 cup brown sugar 1 egg 1 1/4 cup flour 1/2 teaspoon baking powder 3/4 teaspoon baking soda 1/4 teaspoon salt Mix all of the first group of ingredients then add the mixture of the second group of ingredients. Bake at 350 for 10 to 12 minutes. Eat with a big glass of ice cold milk and your all time favorite old movie!!