Plum and kidney beans

1. Soak white kidney beans overnight in advance.

2. Prepare dried plums and rock sugar.

3. Put the kidney beans, dried plums, and rock sugar into a pressure cooker, add water to cover one finger joint of the ingredients, and press until cooked with the highest grade.

4. Bean noodles are very sour and sweet.

5. Put it in the refrigerator and soak it overnight for a better taste. It's cool, sour and sweet, and a great summer snack to relieve heat.