1. Add starch, water and salad oil to the tenderloin, and stir well
2. Adjust the sauce: add half a spoon of sugar, a spoon of white vinegar, a spoon of salt, a few drops of dark soy sauce to the bowl, and mix well
3. The oil is 50% hot, put it in the oil pan, fry until the shape is finalized, remove it
4. Re-explode the fire and take it out
5. Pour the sauce into the pan, add shredded carrot, green onion, and ginger, stir-fry evenly, add the fried meat, sprinkle with coriander, and stir-fry.