Black beans are soaked in clear water until the skin is wrinkled, and the beans become soft (about 1 hour)
Wash the water with salt and preheat the wok.
The black beans are drenched in water and poured into the pot. The fire is dried over the fire and repeatedly fry until the black beans are not watery.
The fire turned to a small fire, stir fry black beans to black beans, round and full of bean cracks, taste crisp, and the beans are floating, there will be a squeaky sound. Turn off the fire, cover it, and suffocate it for a while.