Scallion-Braised Sea Cucumber

Ingredients

• 4 pieces sea cucumber, rehydrated
• 1 large scallion scallion white
• 20–25 ml vegetable oil
• 20 g oyster sauce
• 5 g soy sauce
• 2 g white sugar
• 2 g cornstarch
• 100 ml water

Method

Scallion-braised sea cucumber is a game of two stages: infuse the allium into fat, then braise the protein in a concentrated umami-forward sauce. The scallion white acts as your aromatic anchor — its mild, sweet character won't overwhelm the delicate, slightly gelatinous texture of rehydrated sea cucumber. Start by slicing the scallion white into 1 cm segments and cutting the sea cucumber into similar pieces; uniform sizing ensures even cooking and sauce uptake.

Heat your wok or heavy pan over medium-high heat, then add 20–25 ml vegetable oil. The oil should shimmer and move freely across the surface within 10 seconds — if it's smoking, you've overshot and the scallion will scorch. Add the scallion segments and immediately lower the heat to medium-low. The goal is gentle infusion, not caramelisation. Watch for the white to turn translucent and release a faint sweetness into the oil — this takes roughly 3–5 minutes. The edges may colour very slightly, but any char signals you've pushed it too far. Remove the scallion with chopsticks and set aside on a clean plate.

Pour the sauce base into the same oil: combine 20 g oyster sauce, 5 g soy sauce (not 10 g; the original is oversalted), 2 g white sugar, and 100 ml water in one go. The combination of soy-based-sauce and oyster sauce builds umami depth whilst the sugar balances the salt and adds a subtle gloss. Stir and let it come to a gentle simmer over medium heat. Once fragrant — a matter of 1–2 minutes — add the sea cucumber pieces and maintain a low, rolling simmer for 5 minutes. This hydrates the sea cucumber further and allows it to absorb the braising liquid without becoming rubbery.

Dissolve 2 g cornstarch in a small bowl with just enough cold water to form a smooth slurry. When the braising liquid has reduced by half and concentrates noticeably, pour in the slurry whilst stirring constantly. The cornstarch will thicken the sauce from a thin braise into a glossy, clingy coating — watch for the texture to change, not the clock. Return the reserved scallion white, turn off the heat, and let it sit for 30 seconds to warm through. The residual heat is enough; overcooking at this stage toughens the scallion. Transfer to a serving plate and serve immediately.