2. Turn on the gas, turn on the fire, and preheat the pan for 1~2 minutes.
3. First fry some fat oil, pour most of the fried oil into a small bowl, cool it, and then put it in the refrigerator for refrigeration; Then add lean meat, pour cooking wine, soy sauce and vinegar and stir-fry for a dozen times.
4. Add potato pieces, stir-fry a few times, add salt, and stir-fry for a dozen times.
5. Pour some tap water into the pot, preferably over the vegetables. When the juice is collected by fire, add half of the water (as shown above), and when the juice is collected for the second time, put it on the plate.