Hot and sour plums are particularly cool, (say drooling) I can eat a lot, I especially like to eat, haha!
Plums are washed, choose a little red and delicious!
Flatten with a knife
Sprinkle with sugar and other ingredients (taste yourself, you can also focus on the ingredients)
After being placed in the refrigerator for the night, the water in the plum is poured out the next day, and you can eat it by putting sugar on it!
If you are afraid of acid, you can put more sugar on it!