Regency Sauce

Sauce Régence teaches the hierarchy of a derivative sauce: the foundation gives body, but the essences give identity. Mushroom and truffle must concentrate without being bullied, so the one true thing to know before touching the pan is this: reduce gently. The sauce is ready at nappe (when it coats the back of a spoon), not when a furious boil has driven away its perfume.

The original entry assumed a saucier on staff, a stock never off the fire, and finished Allemande Sauce, essences, and glaze waiting in neighboring pots. No salamander belongs here; the brigade scaffolding was that row of preparations and someone free to watch the reduction. Your equivalent is a heavy four-quart pan, a whisk, and the finished components measured before the burner is lit. The home formula multiplies the entry threefold to make about two quarts in one batch. One cook, one stove, one evening.

For poultry, the stated proportion remains exact: for every pint of Allemande Sauce, six tablespoons mushroom essence, two tablespoons truffle essence, and four tablespoons poultry glaze. The fish variation keeps the same essence ratio, then receives a liaison (egg-yolk thickening) and fish essence. The source leaves that final fish essence as "some," so half a cup is the practical ceiling here, added gradually until the fish foundation speaks clearly. The extra pots can go. The finished foundation, the gentle reduction, and the last concentrated essence are the dish, and they must stay.