Zhujiajiao zharou

Zhujiajiao Zharou is a famous local specialty in Qingpu, which is delicious. Bone the leg meat with skin, cook it in boiling water, add salt and monosodium glutamate, then take it out. After cooling, wrap it tightly with clean gauze, and then tie it tightly with cotton thread (for dumplings). The tighter the better. Then put it in the refrigerator and freeze it. Take it out after about half a month. If you want it to be chewy, tie it tightly and leave it for a few more days.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)