Stir-fried beef with spring onion

Ingredients (serves 4):
300g beef fillet, sliced thinly
1 tsp corn flour
4-5cm ginger bulb
1 tsp sesame oil
2 tbsp olive oil
1 1/2 tbsp oyster sauce
2 tsp black sauce
1/2 tsp brown sugar
5 spring onion bulbs, discard roots and cut 6cm from the end

Method:
1. Coat the beef fillet evenly with corn flour.
2. Skin the ginger and cut 2 slices, then slice the rest into thin strips.
3. In a pan, fry the ginger strips in sesame oil over medium heat till crispy and brown. Remove and set aside.
4. Add olive oil and saute the 2 ginger slices. Add the oyster sauce, black sauce and brown sugar. Fry over medium heat for 1 minute, until fragrant.
5. Add the sliced beef and fry for 5 minutes over medium heat.
6. Add the spring onion bulbs and cook for another minute. Garnish with sliced ginger and serve immediately.

Recipe source: Simply Her magazine (Apr 2008)