1, cleaning: first of all, the required ingredients appropriate amount of ginger, 2 white onion cleaned. The cleaned ginger, scallion white slices ready.

2, pour water: clean the pot, then pour 3 bowls of water. Pour the chopped ginger and scallion into the water.

3, boil: first boil on high heat, boil and then simmer on low heat for 20 minutes. After calculating the time, strain the ginger and scallion whites to and pour into a bowl. In this way, ginger and scallion white water is cooked.