The solstice in winter is cold and the Chinese New Year is approaching, so Sichuan people will cook mutton soup, on the one hand, to drive away the cold in winter, on the other hand, they can also use mutton soup to supplement nutrition. When cooking mutton soup, you can choose radish or lotus root to cook together. When the mutton soup is almost cooked, you can put some hawthorn in it, which can remove the fishy smell of mutton soup and make it taste better.

Winter solstice, also known as short solstice, winter festival and sub-year-old, has both natural and humanistic connotations. It is not only an important solar term among the 24 solar terms, but also a traditional folk festival in China. The solstice in winter is one of the eight festivals in four seasons, and it is considered as a big holiday in winter. In ancient times, there was a saying that the winter solstice was as big as a year. The custom of winter solstice varies in content or details due to different regions. In southern China, there are customs of offering sacrifices to ancestors and enjoying the winter solstice. In northern China, it is a custom to eat jiaozi from winter to Sunday every year.