working methods
1. Wash dried hawthorn, licorice, dark plum and dried osmanthus with water, put them in a casserole together with rock sugar, and soak them in 1500ml water (about six bowls of water in an ordinary household rice bowl) for about 30 minutes;
2. After soaking, add cinnamon powder (some people don't like the taste of cinnamon, but don't let it go) and boil over high heat. After boiling, simmer for 50 minutes. Turn off the fire and let it cool!
You can put it in the refrigerator. The iced sour plum soup is more delicious.