Poisson à la Vapeur — French Steamed Fish with Aromatics

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Steaming fish is the purest cooking method in the poissonnier's repertoire — no fat, no liquid contact, no Maillard reaction — just gentle steam transferring heat at exactly 100°C. French steamed fish (à la vapeur) builds on this purity by introducing aromatics into the steaming liquid, which perfume the fish as it cooks. The method gained prominence through nouvelle cuisine and cuisine minceur (Michel Guérard's health-conscious movement), where the absence of butter and cream was the point. The technique: bring 2-3cm of court-bouillon or aromatic water to a vigorous boil in the base of a steamer (or fish kettle with rack elevated above the liquid). The steaming liquid should contain white wine, lemon slices, fresh herbs (tarragon, dill, fennel fronds), and whole spices. Place the fish (portion fillets, 150-180g each, or a whole fish on the rack) on a lightly oiled steamer plate or perforated rack. Cover tightly and steam. Timing: a 150g sole fillet requires 6-8 minutes; a 180g salmon suprême 8-10 minutes; a 500g whole sea bass 15-18 minutes. The fish is done at 62°C internal — the flesh will be pearlescent, moist, and extraordinarily tender, as the gentle, even heat of steam (unlike the directional heat of a pan or oven) cooks every surface equally. The complete absence of browning means the fish tastes entirely of itself — clean, sweet, and delicate. Classical accompaniments for à la vapeur preparations are deliberately light: beurre blanc, sauce vierge (warm tomato-herb vinaigrette), citrus vinaigrette, or simply excellent olive oil, lemon juice, and fleur de sel.

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