Beef Stir-Fried with Button Mushrooms

Method

1. 1 Slice the beef thinly across the grain, then marinate it with cornstarch and oyster sauce for 20 minutes.
2. 2 Slice the button mushrooms into thick slices and sauté them in a dry pan for 6 minutes until they are slightly browned.
3. 3 Sauté the mushrooms in a dry pan until all the water is released before adding the butter; conversely, boil the mushrooms in water.
4. 4 Sauté the beef in a very hot pan for 90 seconds, then remove it immediately.
5. 5 Sauté the garlic in butter, then stir-fry the onions for 2 minutes, and add the mushrooms.
6. 6 Transfer the beef to the pan and toss for 20 seconds, then sprinkle with crushed pepper and parsley.