1. Cut the pork into strips, add cornstarch, salt, and light soy sauce, and marinate for 15 minutes.
2. Diced tomato
3. Put the marinated meat in the pan and deep-fry or stir-fry, then pick up
4. Put the tomatoes in the pan and fry the juice out
5. Put in the right amount of ketchup and a spoonful of sugar
6. Cook it like this (you can adjust the taste according to your own taste)
7. Add the tenderloin and stir fry, and finally pour in a few drops of white vinegar to get out of the pan
