Wash the sink, fill it with clean water, put a few tablespoons of salt and mix well, add crayfish, stir gently with iron spoon; let stand for 10 minutes
Let go of the dirty water, then fill it with clean water and continue to soak for 10 minutes.
If the water is still turbid, continue to repeat it; (if individual crayfish are dirty, brush with a toothbrush alone)
Let go of the water and dry the crayfish
Take the large wok, add the cooking oil to heat, stir the onion ginger for a while, stir the crayfish until it turns red.
After cooking wine, sugar, soy sauce, stir fry evenly, add a small amount of water to boil, then cover and cook for about 5 minutes until the crayfish is cooked and ready to serve.