Cream together with icing sugar, and there's your peanut butter frosting. It might not be Betty Crocker's Peanut Delight, but there's no reason this truly inspired cake mix flavor has to be left ...

From the 1963 Betty Crocker’s Cooky Book, this recipe makes about 50 2-inch cookies. Icing: 2-1/2 tablespoons unsalted butter, softened 1-1/2 cups sifted confectioners’ sugar 1-1/2 tablespoons ...