Zhengluyi(yi Sansheng ), the legendary palace food. It's not really the tail of a deer. The main ingredient is chopped pork liver. Add sesame paste, pine nuts and peanuts, more than 20 kinds of seasonings, and mix them into liver mud. Steam them in the pig's large intestine. When you cut them, you need to use a knife. If you don't cut them well, the liver mud inside will overflow and become a pile of pulp. First of all, the knife must be fast, and when cutting, the casing on the surface must be cut gently, then pushed and cut down to cut out pieces with regular sections.