in Oyster Sauce
Mix the oyster sauce, rice wine and cornflour in a bowl.
Add the sliced steak, mix well to ensure that the beef is fully covered evenly and leave to marinate for 20 minutes.
Heat a wok. Add the oil and heat until hot.
Stir-fry the spring onions and ginger for a few seconds.
Add the beef and marinade. Stir-fry until beginning to brown.
Add the bamboo shoots and stir-fry until warmed through.
Season if desired and serve.