Soup dumplings, also known as "soup dumplings" and "floating yuanzi", are one of the representatives of traditional Han Chinese snacks[1]. At the same time, it is also the most characteristic food of Chinese traditional festival Lantern Festival, which also expresses the ancient people's yearning and expectation for a happy life.

Soup dumplings originated in China during the Song Dynasty. At that time, Mingzhou (now Ningbo City, Zhejiang Province) rose to eat a novelty food [2], that is, with black sesame seeds, sugar as raw materials, first of all, the black sesame seeds ground into powder, and then lard, sugar successively into the mixture to knead into a ball as a filling, the outside of the glutinous rice flour rolled into a round, cooked, eaten sweet and savory.