Caotouquanzi

It evolved from "fried rectum". Originally called braise in soy sauce circle, it was first made by Shanghai Laozhengxing Restaurant. In the 1930s, some people considered that the circle was full of grease, so they took grass heads and bean sprouts as the enclosure, so they were called "grass head circle" and "bean sprout circle". It is very particular to do the circle of grass heads according to the old method. Grass heads should choose the most tender top leaves, which are the top three leaves. The circle is more difficult to deal with. To remove the smell of the large intestine without destroying the fat of the large intestine itself, it requires the chef to be more careful when preprocessing. A circle, a mouthful of grass, a kind of moisture, a refreshing.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)