蟠龙菜, also known as Panlong cuisine, volume cut, common name leeks, is known as one of the "Zhongxiang three must". Its characteristics are bright color, fat but not greasy, smooth and oily, long-lasting fragrance. It is good to eat 蟠龙菜 all year round, but it is best in autumn and winter, because autumn and winter are good opportunities for people to make up for it.