Elaborately decorated cupcakes may be made for special party occasions. A standard cupcake uses the same basic ingredients as standard-sized cakes: butter, sugar, eggs, and flour, but with these proportions : one cup of butter, two cups of sugar, three cups of flour and four eggs. Nearly any recipe that is suitable for a layer cake can be used to bake cupcakes. The cake batter used for cupcakes may be flavored or have other ingredients stirred in, such as raisins, berries, nuts, or chocolate chips.