1. What is Shui Xin Xuanbing?

Shui Xin Xuan cake is a traditional Japanese snack, which is made of glutinous rice flour and then dipped in soybean flour. A Japanese dim sum shop used agar instead of glutinous rice flour, thus making a "water letter mysterious cake" as transparent as a crystal ball. People who have heard of eating it say that the taste of Shui Xin Xuan cake melts in the mouth.

Second, the background of Shuixin Xuan Bing

It is said that Takeda Shingen, the Japanese military commander in the Warring States Period, likes to eat a cake made of glutinous rice before each expedition. Therefore, Shui Xin Xuan cake is made of glutinous rice flour, which was eaten together with soybean flour at the beginning of Mongolia. Later, a Japanese dessert shop used agar instead of glutinous rice flour to make "Shui Xin Xuan Cake" as transparent as a crystal ball, which was later called Shui Xin Xuan Cake.