1. Add an egg to the bowl and beat, add the tenderloin, half a spoon of salt, stir well, and marinate for a while
2. The tenderloin is coated with starch and deep-fried in a frying pan until golden and removed
3. 20 grams of tomato sauce, 2 grams of sugar, 2 grams of starch, and 30 grams of water, stir evenly, and make a sauce
4. Heat oil in a pot, add green and red peppers, seasoned sauce, tenderloin, and pineapple, stir-fry and serve.
