1. Prepare ingredients: a steak, appropriate amount of vegetable oil, an air fryer and appropriate amount of chopped green onion.

2. Open the air fryer, adjust the temperature to 2℃ and preheat for 5 minutes.

3. Put tin foil in the air fryer, preheat it and put in the steak. Brush both sides of the steak with vegetable oil in advance.

4. Fry at 2 degrees for 3 minutes, bring to the boil, turn the steak over and fry for 3 minutes.

5. Finally, cut the cut steak into strips and serve.