Exercise:

1. Wash and cut beef+1 tbsp cooking wine+1 tbsp soy sauce +0 tbsp oyster sauce+1 tbsp starch+1 tbsp cooking oil.

2. Add black pepper and marinate for 20 minutes.

3. Dice the pineapple and soak it in salt for 5 minutes.

4. Heat the oil and add the pineapple.

5. Fry the beef until it changes color and stir well.

6. Sprinkle coriander on the pot and eat.