Butterfly theme sponge cake recipe in their recipe book. One of the first yellow sponge cake recipes I ever learned to bake was this one, and it has been really helpful to me. Several of my cake recipes call for it. I loved it for its lovely texture, ease of preparation, and clear directions. A large, inedible butterfly and some flowers are placed on the side of the cake to enhance its appealing appearance. The cake is made even more gorgeous by the way the colors are combined. It is ideal for any girl’s party or birthday.