it's easy if you have a pressure cooker.

cut into small pieces, put in cold water, and put less cooking wine. Boil the water for 5 minutes.

Then put rock sugar, onion and ginger slices at the bottom of the high-pressure pot, with less water and less cooking wine. The exquisite ones can be put face down.

press add food halfway. With 1 minutes left, open it and put the skin up.

after finishing, put the meat and soup into the container and cover it with plastic wrap. Steam for 3 minutes. Skin up.

it's OK. I've done it many times and it's all very good. It's just a light color.