CANTONESE STEAMED FISH (ZHENG YU)

Ingredients

• 1 (600–800 g) whole sea bass or equivalent live or killed-to-order fish, scored diagonally to the bone, 2–3 cuts per side
• 30 g fresh ginger, half sliced (for cavity and under fish), half finely julienned (for the finish)
• 3 spring onions, finely julienned
• 3 tbsp light soy sauce, premium, slightly aged preferred
• 3 tbsp neutral oil, heated to 190 °C

Method

1. 1
   Set a steamer with ample water over the highest heat available. While the water comes to a rolling boil, score the fish diagonally on each side, 2–3 cuts deep enough to reach the backbone. Lay two crossed chopsticks across a heatproof plate; set the fish on top. Tuck the ginger slices inside the cavity and beneath the fish. No soy sauce, no oil, nothing further is added at this stage. The fish is ready to enter the steamer only when the water is at a sustained, violent boil.
2. 2
   Lower the plate into the steamer on its chopstick elevation so that steam circulates freely beneath. Cover immediately and steam over fierce, uninterrupted heat: 6–8 minutes for a 600 g fish, 8–10 minutes for an 800 g fish. Use a timer. While the fish steams, bring the oil to 190 °C in a small saucepan, julienne the ginger and spring onion, and measure the soy sauce. Everything must be ready before the timer sounds. Probe the flesh at the dorsal fin with a chopstick — it should separate cleanly, white and opaque throughout, with the skin taut and uncollapsed.
3. 3
   This is where the dish lives or dies. The instant the fish is lifted from the steamer, discard the accumulated steaming liquid from the plate, scatter the julienned ginger and spring onion over the fish, and flood the aromatics with the oil at 190 °C in a single confident pour. The oil must hit the aromatics with an aggressive, violent sizzle; a weak hiss means the oil has cooled and the aromatics will taste raw. Both ginger and spring onion should be distinctly and cleanly volatile within one second of pouring.
4. 4
   Immediately drizzle the measured light soy sauce along the length of the fish. The oil carries the soy fragrance into the flesh. Serve without delay — the plate must reach the table while the surface is still audibly active. The flesh should yield to a chopstick with almost no resistance, flaking in clean layers parallel to the bone, carrying the clean sweetness of fresh fish, the brightness of ginger, the mild onion heat of spring onion, and the umami depth of quality soy, with no fishiness and no steamer-water flavour.