Court Bouillon
What it is
A quick, aromatic poaching liquid — court bouillon means "short broth," for its brief cooking — used to gently cook fish, shellfish, vegetables, and offal. Not a true stock (it contains no bones and is not a flavor foundation) but a flavored cooking medium.
How it's made
Water is combined with an acid (white wine, vinegar, or lemon), aromatic vegetables (onion, carrot, celery, leek), herbs (bouquet garni), peppercorns, and salt, and simmered just long enough — typically 20–30 minutes — to infuse. The acid is functionally important: it firms fish flesh and brightens flavor. It is used fresh, as the liquid to poach in, then usually discarded (or used once).
Flavor profile
Light, acidic, aromatic, and clean — designed to gently season and firm what is cooked in it rather than to add deep savory body. Bright and herbaceous.
Culinary uses
Poaching whole fish, shellfish, delicate vegetables, sweetbreads and other offal; the gentle, acidulated bath that keeps poached fish firm and clean-flavored. Without it: poaching fish in plain water yields a bland, sometimes mushy result — the acid and aromatics of a court bouillon are what season the flesh from the outside and keep its texture pleasingly firm. It is a small technique with an outsized effect.
Regional variations
Vinegar-based vs. wine-based vs. milk-based (court bouillon au lait, for certain fish like smoked haddock); a court bouillon heavily spiced with peppercorns and aromatics is used for poaching trout au bleu. Caribbean and Cajun "court bouillon" is a different, tomato-based fish stew — a false cognate worth flagging.
Cultural & historical context
Court bouillon is classical French technique distilled to its simplest useful form — proof that a "broth" need not be a long-simmered foundation to matter. The same name traveling to Louisiana and the Caribbean to mean an entirely different dish is a small lesson in culinary migration.
Reference notes
Tags: `base`, `poaching-liquid`, `court-bouillon`, `acidulated`, `aromatic`, `french`. Related ingredients: white wine, vinegar, mirepoix, bouquet garni, peppercorns. Related cuisines: French (and Cajun/Caribbean false cognate). Suggested links: Vegetable Nage, Fish Fumet, Bouquet Garni, Poaching. Note the Cajun/Caribbean homonym for the platform's cross-cultural naming notes.