Step1:1. Prepare the ingredients. Wash the tenderloin and add vinegar, soy sauce, onion and pepper. Marinate for about 10 minutes. 2. Heat the peanut oil. Stir fry the shredded onion. 3. Stir fry the meat for a few minutes. 4. Pour out the gravy. 5. Add oil to the stir fried meat and add some soy sauce vinegar. A spoonful of sugar and water starch for a few minutes. 6. Then the work is done.
Cooking tips:There are skills in making delicious dishes.