Chao Gan or fried liver refers to one of the food of Beijing which is made with raw material as pig's intestines and some liver with soy sauce, mashed garlic, starch, aniseed, etc. as seasonings. Chao Gan is made by boiling the intestine with seasonings and later the liver is added. When cooked, the juice is sparkling and clear while the intestine is tender and the liver is tasty. Chao Gan is in fact not fried but boiled. But since it got the name in Qing Dynasty (1644-1911), people accepted it according to the custom. In Beijing, Tianxingju Chaogan Restaurant is the most well-known restaurant for Fried Liver is in Xianyukou Jie, Qianmen, Chongwenmen District.