Cantonese Beef and Gai Lan Stir-Fry (Gai Lan Chao Niurou)

This is the quintessential Cantonese wok dish — a masterclass in high-heat technique, minimal ingredients, and precision timing. Gai lan (Chinese broccoli) brings a pleasantly bitter edge that pairs beautifully with the umami-rich oyster sauce and the tenderness of velveted beef. In Hong Kong, this combination appears on virtually every dai pai dong (open-air street stall) menu. The secret is wok hei — the smoky, almost caramelised flavour that comes from an extremely hot wok and confident, rapid movement. Without wok hei, the dish is merely good; with it, it is extraordinary.

Serves: 2

Ingredients

For the beef:

• 300 g (10.5 oz) beef sirloin or flank steak, sliced thinly across the grain
• 1 tbsp soy sauce
• 1 tsp bicarbonate of soda (baking soda)
• 1 tsp cornstarch (cornflour)
• 1 tbsp neutral oil

For the stir-fry:

• 400 g (14 oz) gai lan (Chinese broccoli), stems trimmed, cut into 6 cm (2.5 in) pieces
• 3 tbsp oyster sauce
• 1 tsp sesame oil
• 1 tsp sugar
• 2 tbsp Shaoxing rice wine
• 3 cloves garlic, thinly sliced
• 2 cm (¾ in) fresh ginger, julienned
• 3 tbsp neutral oil, divided
• 60 ml (¼ cup) water

Instructions

1. Velvet the beef: Combine sliced beef with soy sauce, bicarbonate of soda, and cornstarch. Mix well and marinate at room temperature for 20 minutes. The bicarbonate tenderises the muscle fibres, giving the beef a silky, restaurant-quality texture.

2. Blanch the gai lan: Bring a pot of salted water to a vigorous boil. Blanch gai lan for 90 seconds. Drain and set aside. This parcooks the stems so the stir-fry stays quick and fierce.

3. Mix the sauce: Whisk together oyster sauce, sesame oil, sugar, Shaoxing wine, and water. Set aside within arm's reach of the stove.

4. First cook — beef: Heat your wok over the highest possible flame until it begins to smoke. Add 2 tbsp oil and swirl to coat. Add beef in a single layer. Do not stir for 30 seconds to allow a sear to develop. Stir-fry for 1 minute total until just cooked. Remove and set aside.

5. Second cook — aromatics and gai lan: Add remaining 1 tbsp oil to the hot wok. Add garlic and ginger and stir-fry for 15 seconds until fragrant. Add blanched gai lan and toss for 1 minute.

6. Finish: Return beef to the wok. Pour sauce over everything and toss vigorously for 30 seconds over high heat until the sauce clings and glosses every piece. Plate immediately and serve with steamed rice.

Cook's Notes: Thin slicing (about 3 mm / ⅛ in) is essential — thicker cuts will not cook through in the brief window before the wok cools. If your hob cannot produce very high heat, cook in two batches to avoid steaming. Gai lan can be substituted with broccolini or regular broccoli florets.