1.pork with soy sauce, monosodium glutamate, starch, marinate for 10 minutes and then pour out the excess juice, drain.

2. Wash and cut the onion, wash and slice the garlic, wash and cut the scallion.

3. Add oil to the pan, heat, and stir-fry the pork for 1 minute.

4. Add oil to the frying pan, pour in onion, garlic, green onion, and sauté for 2 minutes until fragrant, then add the fried pork into the pan and sauté together, and season with white vinegar, sesame oil and sugar.

5. Stir-fry all the ingredients in the frying pan for two minutes and then evenly into the pan, heat over high heat, water starch hook thin, and serve.