1.Slice the beef against the grain. Mix with light soy sauce, rice wine, potato starch, water and sugar. Coat with oil then leave to rest for 15 minutes.
Prepare the Rice Noodles:
2.If using fresh ones: Gently separate the sa-ho fun by hand into long strands (try not to break them into small pieces).
3. If using dried ones: follow the instructions on the package to cook then rinse under cold water prior to stir-frying.
Stir Fry:
4. Pour oil into a hot wok. Stir in the marinated beef slices. Fry until they just turn pale (do not overcook). Dish out and leave the oil in the wok.
5. Put in sa-ho fun. Gently stir around with a pair of chopsticks. When the sa-ho fun begins to wilt, add in beansprouts and onion. Fry for 30 seconds or so.
6. Add the beef and Chinese chives. Pour in light soy sauce and dark soy sauce. Cook for a further 30 seconds.
