Soufflé d’Écrevisses Léopold de Rothschild

Soufflé d’Écrevisses Léopold de Rothschild (crayfish soufflé with asparagus and truffle) teaches the discipline of readiness. The oven gives you its rise only when the mould is prepared, the garnish is dry, and the table is waiting. The one true thing to know before touching a pan is this: finish every other task before you whisk the whites.

The brigade formula assumed a saucier on staff, a stock never off the fire, cooked crayfish and garnishes waiting at the station, and a salamander ready whenever fierce top heat was wanted. Your honest equivalents are one small saucepan, good unsalted shellfish stock reduced for concentration, and an ordinary oven supplying steady heat from all sides. The broiler stays off because it would set the crown before the centre could rise. I have scaled the brigade mould to one 1½-quart dish for four and made the shorthand soufflé base explicit. The station work is scaffolding and can go; the pale roux, Parmesan, scant spoonful of asparagus, truffle slices, crayfish tails between the layers, and immediate baking are the dish and must stay.

The finished soufflé stands tall and bronze above its dish, with an ivory interior hiding coral tails and dark slips of truffle. Fold until no large pockets of white remain, then stop while the mixture still holds its billowing shape. That fold decides the dish.