Lenten Espagnole

Espagnole Maigre (Lenten fish Espagnole) teaches that a mother sauce is defined by its structure, not by meat. Build a proper brown roux, give it a clean fish fumet, then dépouiller, skim it steadily at a bare tremble, and it gains the authority of ordinary Espagnole without bacon or meat stock. The one true thing to know before touching the pan is this: the quiet hour of skimming is the sauce. A boil churns the impurities back through it.

The professional formula assumed a saucier watching the pot, fish fumet never off the fire, and quantities large enough for a full service. Here the same proportions produce about two quarts in one heavy saucepan. The salamander belongs only when this sauce continues into Gratins (No. 268); a home broiler answers for it in that separate preparation. What changed is scale and equipment, because one cook doesn't need a battery of stockpots. What remains is the dish: brown roux, Mirepoix (No. 228) with mushroom parings replacing bacon, fish fumet, tomato, and one hour of careful dépouillage.

Repeated handling by several cooks was brigade scaffolding, so it can go. The one-hour simmer cannot. Keep the surface barely moving and skim without stirring the froth back into the sauce; if the fumet knots when it meets the roux, stop adding liquid and whisk it smooth off the heat. Ça se rattrape.