Potage aux Herbes

Potage aux Herbes (green herb soup) teaches one true thing before you touch the pan: tender herbs may collapse in butter, but they must never brown. Sorrel brings acidity, watercress its pepper, chervil its anise perfume, and young pimprenelle a cool cucumber note. Gentle heat keeps those voices distinct.

The old formula assumes a saucier with a tammy and Printanier butter with herbs already prepared by another station. A fine-mesh sieve replaces the tammy, the batch is fixed at about two quarts for one four-quart saucepan, and the two unstated amounts, stewing butter and young pimpernel, receive modest measures so you can repeat the result. Every stated proportion remains intact. The water is deliberate, not a missing stock; a stronger foundation would smother the garden. One cook, one stove, one evening.

The finished potage should be smooth and softly thick, green leaning naturally toward olive from the cooked sorrel, with a satin gleam from its butter. Watch the first pan closely: herbs collapsed without a trace of browning. That is the step that decides the dish.