Yuanxiao is also called dumpling, dumpling, floating dumpling, water dumpling, dumpling, lactose dumpling and sugar dumpling. Yuanxiao is one of the traditional snacks of the Han nationality in China, which belongs to the festival food custom. Yuanxiao is a round food made of glutinous rice flour, which can be divided into two types: solid and stuffed. If solid Yuanxiao is cooked with fermented grains, sugar and osmanthus, it has a unique flavor.