Use a small half of the whole color of the white fungus, enough to grasp the peach aphid, 10 grams of saponin rice in the cold water soaked overnight.
Wash the water and add water. Bring the fire to a low heat and boil for 2 hours. Turn off the heat, add the appropriate amount of yellow rock sugar, cover the lid, and let it stand for a while. When it is hot, sprinkle a little sweet-scented osmanthus or jasmine.
The foaming time is at least 4 hours, the cooking time can not be less than 2 hours, the water should be added enough, and the rock sugar is added after the fire is turned off.