Whipped shortbread cookies These melt in your mouth! The secret is in the beating. Ingredients: 1 cup butter (do not use margarine) 1/2 cup icing sugar (powdered sugar) 1 1/2 cups flour Instructions: Cream butter and sugar. Add flour and beat for 10 minutes. Drop from small spoon onto cookie sheet. Bake at 350 F. for about 10-12 minutes, until bottoms are lightly browned. makes about 3 dozen small cookies. This recipe doubles well.