1. Marinate with wine and salt for half an hour. Put some shredded onion and ginger below and a celery above, so that there is a gap under the plate and steam can enter. Put some onions and ginger on the fish, too

2. Sit in the pot and put the fish on it after the fire boils. Steam a catty of fish for 6 minutes. Turn off the fire and wait for 8 minutes without moving the pan. This is called virtual steaming. Then pour soy sauce and vinegar, and finally pour pepper oil on the fish.