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 and clean it.

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

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

No salt! Otherwise, it won't cook badly!

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

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