Fricassée de Poulet aux Écrevisses

Fricassée de Poulet aux Écrevisses (white chicken fricassée with crayfish) teaches the discipline of building flavor without browning. The chicken is raidi, firmed gently in butter without taking color, then poached in a pale sauce founded on flour, stock, cream, and egg yolks. Its depth comes at the finish, when butter pounded with the cooked crayfish shells carries their full savor back into the sauce.

The entry assumes a saucier on staff, chicken stock never off the fire, a mortar for the carcasses, linen for straining, and separate hands tending chicken and crayfish. A heavy casserole, good unsalted stock, a rolling pin, a food processor, and damp cheesecloth do the same work at home. This version sets the base fricassée at one chicken for four and keeps the entry's exact garnish: ten mushrooms, twelve crayfish tails, and 2½ ounces of finished crayfish butter. Only the brigade scaffolding has gone. One cook, one stove, one evening.

The sauce reaches the table ivory blushed with coral, glossy around the chicken, with the mushrooms still pale and the crayfish tails just warmed through. The step that decides it is monter au beurre, whisking the crayfish butter into the sauce after the pan leaves the heat. Boil afterward and the sauce sheds its butter. Keep it off the fire and it turns to silk.