Prepare some soybeans and pick out the bad ones. You can also prepare some black beans at home.
Wash all the beans several times and soak them in clear water. You don't need to soak for a day and a night. It's been too long, and my skin is almost soaked. Just soak for 1-2 hours, and the beans are just soaked, which can ensure that the fried beans are not easy to paste and crisp.
Prepare a thick pot. If the pan is thin, brush it with a thin layer of oil. Pour in two kinds of drained beans and stir-fry them with high fire first.
Stir-fry until the water is invisible to the naked eye. Turn to the lowest fire and stir-fry slowly. Beans are difficult to cook, so it will take a long time to fry.
The surface of the fried beans is slightly burnt and becomes light and crisp when fried with a shovel. Just add a spoonful of salt and mix well. After cooling, put it in a bag or bottle to keep it crisp.