1. Material: a pig's foot, preferably the front foot (I want to eat meat, so I only use round hoofs, and friends who like bones can kill the whole one).

2. Wash with water and remove the big bones in the middle.

3. add water to the pot, put the round hoof in and get ready to cook.

4. Cook with slow fire, preferably just cooked, it's too bad to eat. Soak the cooked trotters in cold water and put them in the refrigerator for one hour.

5. After the pig's trotters are cooked, it is the production of dipping materials, and the ginger is cut into silk.

6. Add sugar and rice vinegar to make sour ginger, which takes about half an hour.

7. Dice garlic, onion and lemon.

8. Put oil in a hot pot, add garlic and onion to stir fry, add lemon, sour ginger, soy sauce, cooking wine and salt, and add Chili oil to friends who like spicy food.

9. Take the trotters out of the refrigerator, slice them (the thinner the better) and cut them into white.