1. Cut chicken breasts into thin slices, add appropriate amount of egg white, salt, cooking wine, and meat tenderizer to marinate for a while
2. Make a pot of boiling water, turn off the heat when the water is boiling
3. Put the marinated chicken slices in and stir quickly with chopsticks
4. Drain the water immediately after the chicken slices change color and set aside
5. Cut the pineapple into pieces and wash, soak in salt water for 30 minutes, and cut the sharp pepper into small pieces
6. Heat up the wok, add a proper amount of salad oil, put in the green onion and ginger, then add the green peppers and fry until soft
7. Add pineapple and stir fry quickly
8. Add an appropriate amount of tomato sauce and stir well
9. Pour in tender chicken slices and stir-fry quickly evenly
10. Put in the right amount of sugar and salt to taste and it can be out of the pot
