First choose the hair, then scrape the whole skin with a knife, and scrape all the dirty things on the pigskin to make it milky white.

Then wash it with hot water.

Boil the skin and pour the water for the first time.

Boil water and add seasoning, onion, ginger and cooking wine; Wrap pepper, aniseed, cinnamon and cardamom in a small cloth bag and throw them into the pot.

No salt! Otherwise, it wouldn't be badly cooked!

Cook for three to four hours, and then see if it's delicious!

Make sure there is no "pig smell" at all, only incense!