Kasutera is an old-fashoned Japanese yellow sponge cake which was originally brought to Japan from Portugal in the 16th century. Over the hundreds of years, the taste of the original kasutera has changed a lot to suit Japanese tastes. Kasutera is soft, light and somewhat chewy in texture, which make Kasutera different from western sponge cakes. Everybody loves Kasutera in Japan! It's perfect for tea time at home and for a gift.