1, wash the pigskin first, and then cook it in water until soft.

2. Take out the pigskin, scrape off the residual fat with a knife, and clean the pighair with tweezers.

3. Then cut the scraped pigskin into filaments, put it in clean water that has never touched pigskin, and cook it again. Bring the fire to a boil, and simmer for about 1 hour.

4. Cook until the soup is thick and turn off the heat. Add salt and stir well.

5. Pour into the fresh-keeping box, cover it, and put it in the refrigerator for one night.

6. Take out the shaped jelly, slice it and add vinegar, shredded onion and shredded ginger. Seasoning is prepared according to your own taste.

Pigskin, alias pigskin, is pigskin, which is rich in protein, carbohydrates and collagen. Pigskin is a common food, but as a medicine, it is also recorded. The pigskin soup in Treatise on Febrile Diseases by Zhang Zhongjing in the Eastern Han Dynasty was made of pigskin. Pig skin soup, used to treat diarrhea, sore throat, chest distress and upset caused by shaoyin disease: pig skin 1 kg, take five liters of water in a bucket, remove my dregs, add one liter of white honey and five portions of white powder. Burn incense and get together, warm and divide into six clothes.