Bozi cake is one of the local traditional pastries in Guangdong Province. Its main ingredients are rice flour or Chengfen and tapioca starch, which is famous for its smooth, delicious and rich taste. Bowl cakes can be divided into two categories: old-fashioned bowl cakes and crystal bowl cakes. Old-fashioned bowl cakes were more common in the past, but now crystal bowl cakes are more common. The Cantonese word "smoke toughness" not only describes the toughness of food and is not easy to break, but also has another meaning, that is, it is used to describe the love and intimacy of a couple. Therefore, bowl cake has become a snack often eaten by couples when they are dating. Famous for its variety of styles and "smoky and tough" taste, bozi cake, like most delicacies, has some unique meaning.