1. First pick out the broken or incomplete particles in the black beans, and soak the black beans in water for one or two days until they are completely soaked, and drain the water.

2. Put the coarse salt particles into an iron pan, stir fry and add black beans. You can peel off the black beans by hand and taste the beans.

3. Turn off the fire when it becomes brittle, screen out the black beans with a colander or coarse salt sieve, and let them cool and serve.

4. The protein content of black beans is 36%, which is easy to digest, and it is of great significance to meet the needs of human body for protein.

5. Fat content 16%, mainly containing unsaturated fatty acids, and the absorption rate is as high as 95%.

6. Black beans are rich in vitamins, egg yolk, melanin and lecithin, among which B vitamins and vitamin E are higher.