The sweet and sour tenderloin made in this way is crisp outside and tender inside

Ingredients:

Cut the tenderloin to the size of fingers, stir and marinate for 2 minutes with a spoonful of cooking wine, a spoonful of salt, an egg and less than half a spoonful of pepper, sauce, two spoonfuls of vinegar, two spoonfuls of sugar, one spoonful of soy sauce, three spoonfuls of water, four spoonfuls of tomato sauce, one spoonful of corn starch, etc. Fry for 1 minute for the first time and for 1 minute for the second time. Heat the oil in the pan, pour in the sauce on low heat, and cook until the sauce is sticky. Pour in the fried tenderloin, stir well, and take out the pan.