1. \nPrepare ingredients.
2. Cut the tenderloin into pieces.
3. After cutting, add a small amount of salt and a spoonful of sugar to marinate.
4. Beat the eggs into a bowl and mix thoroughly.
5. The marinated tenderloin is stuck with a layer of egg wash.
6. Glue a layer of cornstarch.
7. Deep fry in the frying pan until golden brown on both sides.
8. \nRemove after frying.
9. Stir tomato diced in a hot pan.
10. After sautéing, add a small amount of water, tomato sauce, and sugar to make a sauce.
11. Add pineapple cubes.
12. \nAdd the fried tenderloin and mix well.
Tips:1. After the tenderloin is cut, marinate it and then fry it for more flavor. \n2 After the sweet and sour sauce is cooked, turn off the heat first, then pour in the fried tenderloin, mix well quickly, so as to keep the meat strips crispy.
