1. Wash the pigskin, shave the hair, and shave the red seal.
2. Add the baking soda flying water for the first time and scrape the fat with a knife.
3. For the second time, use vinegar to fly water, and then thoroughly clean the fat and cut into thin strips.
4. Put the green onion and ginger into the dish and cover with plastic wrap.
5. Put it in a steamer and steam for 3 hours.
6. After steaming, remove the green onion and ginger, pour it into a container, add salt and pepper to taste, cover with plastic wrap and freeze for 2 hours.
7. take out.
8. Cut into pieces and serve on a plate.
