Velouté Agnès Sorel

Velouté Agnès Sorel (poultry velouté with mushroom purée and julienne garnish) teaches one essential thing: delicacy sometimes depends on speed. Raw mushrooms darken as soon as they are broken, so the purée must be sieved into the hot velouté, briefly boiled, and strained again without a pause. That quick passage preserves the soup's pale ivory color and its clean mushroom perfume.

The brigade formula assumed a saucier on staff, poultry stock never off the fire, mushrooms pounded by hand, and a tammy waiting beside the stove. Here, the finished poultry base comes from The Veloutés (No. 242), a food processor replaces the mortar, and a sturdy fine-mesh sieve does the tammy's work. I have doubled the entry's base to make about two quarts, enough for eight first courses. What changed is the labor and scale. What stays is the dish itself: raw mushroom purée, immediate sieving, two brief boils, a liaison of yolks and cream, and real butter at the last moment. One cook, one stove, one evening.

Set out the processor, sieve, and clean receiving saucepan before you cut a mushroom. Once the purée is made, there is no useful pause until the soup has passed through that sieve a second time.