Step 1: Mix the ebony and hawthorn according to the ratio of 7:5, and put them into a pot filled with water to boil.

Step 2: simmer for about 30~40 minutes.

Step 3: smell whether the flavors of dark plum and hawthorn have been boiled, and if not, continue to boil; When the tea soup is warmed or cooled, add rock sugar or honey to adjust the taste until the taste is harmonious.