Timbale de Queues d’Écrevisses à la Nantua

Timbale de Queues d’Écrevisses à la Nantua (crayfish-tail pastry timbale with Nantua sauce) teaches one unarguable thing: keep the shells. The tails are the garnish, sweet and delicate, but the crushed heads and shells give the sauce its coral colour, mineral depth, and unmistakable crayfish perfume. Discard them and you can still make cream sauce, but you cannot make this dish.

The original assumed a pastry cook, a saucier on staff, prepared crayfish butter and cream sauce waiting beside a stock never off the fire, and a dedicated timbale mold. The salamander belonged to that kitchen too, though this entry does not call on it. Here, a small springform pan replaces the mold, a sturdy food processor and fine sieve replace the mortar and tammy, and the same crayfish shells supply both the butter and the sauce. Sixty crayfish for ten become twenty-four for four, with every garnish kept in proportion. The napkin presentation is brigade scaffolding and can go; the hot empty crust, whiting quenelles, black truffle, and shell-built sauce are the dish and must stay. One cook, one stove, one evening.

When it lands correctly, the pastry is butter-gold and crisp, the lid lifts onto a coral-pink sauce gleaming around orange-red tails, pale quenelles, white mushrooms, and a black crown of truffle. Do not hurry the shell extraction or merely drain it. Press the cream sauce firmly through the crushed shells, because that pressure is where Nantua gives up its full character.