Formula of sour plum soup: dark plum, hawthorn, licorice, crystal sugar and water. The specific method is as follows:

Material preparation: ebony, hawthorn, licorice, rock sugar, water and so on.

1, prepare all materials.

2. Soak hawthorn and ebony in clear water for 5 minutes, and rinse several times to remove impurities on the surface.

3. The washed ebony, hawthorn and licorice are soaked in 1 500g of water1hour.

4, the fire is boiled and slowly fried for 35 minutes.

5. Add 50 grams of rock sugar and cook for 5 minutes until all the rock sugar melts.

6, filter it, you can drink it when it is cool.