Wash the bought chicken wings first, soak them in clear water for at least an hour, and soak the blood. The smell in the blood is very strong.

Put cold water in the pot, add a small amount of onion, ginger and cooking wine, and put the washed chicken wings in blanching water. When the water boils, it will boil slightly. After a while, you will find that there are a lot of floating foam on the water surface, and the water becomes turbid, that is, blanching is completed.