Potage Solférino

Potage Solférino (a sieved leek, tomato, and potato soup) teaches the difference between a vegetable purée and a proper potage: the tamis (fine sieve). The one true thing to know before touching the pan is that its silk comes from passing the vegetables finely, not from cream. The butter supplies richness, but the sieve makes the texture.

The original assumed a saucier on staff, white consommé never off the fire, a cloth tammy, and a spoon-cutter waiting beside the stove. No salamander enters this pot. For one cook, one stove, one evening, a food mill followed by a fine-mesh sieve does the tammy's work, and a small melon baller cuts the twelve potato pearls. The source formula is already close to a two-quart home pot, so its vegetable and butter proportions remain intact; only the vague final quantity of consommé has been given a practical range. Brigade hands are scaffolding. Cooking the garnish separately, sieving the purée, and adding the finishing butter only at service are the dish, and they stay.

Done properly, Solférino is warm coral in the bowl, fluid rather than stodgy, with pale potato balls and green-bean lozenges showing through a butter-bright surface. The step that decides it is the tamis: pass the purée while it is warm, and don't stop at almost smooth.