Add oil and press for 25 minutes. Taking braised pig's trotters as an example, this paper introduces the specific methods for reference. Prepare materials first: trotters 1500g, cooking oil 30g, one onion, several slices of ginger, several cloves of garlic, several slices of fragrant leaves, several grains of rock sugar, one dried pepper, several slices of pepper, 2 tablespoons of light soy sauce, 2 tablespoons of cooking wine and a proper amount of salt.

1. Wash pig's trotters and cut them into pieces, then put them into cold water in the pot, add a few slices of ginger and blanch them with 2 spoonfuls of cooking wine.

2. Then remove the trotters and clean them for later use.

3. Put cooking oil in the pot, add rock sugar, stir-fry over low heat until the rock sugar melts into caramel color.

4. Add trotters and stir fry quickly.

5. Add onion, ginger, garlic, fragrant leaves, cinnamon and star anise and continue to stir fry.

6. Add a spoonful of oyster sauce, 2 tablespoons of soy sauce, 2 tablespoons of soy sauce, the right amount of salt and 2 tablespoons of cooking wine, and continue to stir fry.

7. Add a bowl of boiling water.

8. Pour the trotters into the pressure cooker.

9. Cover the pot and simmer for 25 minutes, then SAIC.

10. Done.