1, material: a pig's foot, appropriate amount of rock sugar, appropriate amount of cooking wine, appropriate amount of onion, ginger, star anise, pepper, cinnamon, angelica dahurica, tsaoko and red pepper.

2, pig's trotters, depilated, washed and chopped.

3. Boil water in the pot, add ginger slices and onion segments, pour a little cooking wine, add pig's trotters, boil blood, and finally float. Boil the water for three or four minutes.

4. Take out the cooked trotters and rinse them with cold water.

5, put oil in the pot, add rock sugar, simmer, add drained trotters, stir fry, so that each trotter can be soaked in sugar solution. Add pepper, onion and ginger slices, stir-fry for a while, and add water.

6. Pour the pig's trotters and soup into the pressure cooker, add star anise, pepper, cinnamon, angelica dahurica, tsaoko, fragrant leaves and dried hawthorn, and add enough water.

7. After the pressure cooker SAIC, press for half an hour. Open the lid, season with salt, and cook for another five minutes to collect the juice.