First, clean the yellow croaker, put it into a container, add appropriate amount of salt, cooking wine, pepper, chopped green onion and ginger slices, stir evenly, and marinate for 20 minutes. Then prepare the container, add appropriate amount of flour, add an egg white and appropriate amount of beer, stir it into a paste, and pour appropriate amount of oil into the pot, and the oil is 70% hot. Dip croaker in batter, fry in oil pan until golden brown, and take out.