- 450g (1lb) fillet of beef
- 350g (12oz) tender young asparagus tips (1 bundle)
- 2 tbsp groundnut oil
- 1 onion, thinly sliced
- 4 garlic cloves, finely chopped
- 2 tsp finely chopped root ginger
- 2 tbsp black beans, coarsely chopped
- 3 tbsp chicken stock
- 1 tbsp Chinese rice wine
- 1 tsp sugar
- 2 tbsp oyster sauce
For the marinade:
- 2 tsp light soy sauce
- 2 tsp Chinese rice wine
- 2 tsp sesame oil
- 2 tsp cornflour
- salt and freshly-ground black pepper
- steamed rice, to serve