175g/6oz fresh beansprouts
3 tbsp finely chopped spring onions, to garnish
300ml/10Β½fl oz chicken stock
225g/8oz fresh thin egg noodles (substitute dried egg noodles if unavailable)
2 tbsp oyster sauce
Β½ tsp freshly ground black pepper
2 tsp cornflour
1 tbsp cornflour, mixed with 1Β½ tbsp water
300ml/10fl oz groundnut or vegetable oil
1 tsp salt
1 tbsp light soy sauce
Β½ tsp freshly ground white pepper
1 free-range egg white
225g/8oz boneless, skinless chicken breasts, cut into thin strips
2 tbsp Shaoxing rice wine or dry sherry