General cuisine, commonly known as Pu 'er cuisine, is a unique traditional dish of Huai 'an Han nationality. Because it is the stem bud of cattail root, it is also called cattail bud and bamboo shoot; In the journey to the west, it is called Pugen cuisine, and in ancient books it is called Pu, Shen Pu or Pu Zhen. Pu is a wild aquatic plant, also known as cattail. Pu Wei is as tough as silk, that's Lao Pu. The stems of new-born Puxinpu are tender and edible. People have a long history of eating cattail.