Cooking Steps

1. 

   Step1:Chop tenderloin into thick strips. Add salt, cooking wine, soy sauce, thirteen spices, oyster sauce. Mix and marinate for 30 minutes A kind of Starch in the proportion of 1-1 plus an egg to make a past

2. 

   Step2:Marinated tenderloin wrapped in batter and fried in a small pot until golden brown. Remove from the pot and fry for 30 seconds

3. 

   Step3:Mix the white vinegar and sugar tomato paste evenly in the proportion of 1-1-

4. 

   Step4:Heat the oil and ketchup in a hot pot until they are bubbly. Stir fry the fried pork tenderloin evenly

5. 

   Step5:It's out of the pot. It's sweet and sour.