bouillir

French bouillir means to boil. Bouillon — boiled liquid, stock — is the water in which meat or vegetables have boiled, the result of extracting flavor through sustained heat. The word entered English in the 17th century as French cuisine's influence spread through European aristocratic dining. Bouillon was the foundation: every French sauce began with a stock, every stock with patient boiling, every boiling with the verb bouillir.

In 1765, a Parisian soup vendor named Boulanger is said to have opened what may be the first modern restaurant, serving 'restorants' — restorative broths — to the public on Rue des Poulies. Whether this story is entirely accurate is disputed by food historians, but bouillon was the medium: a liquid that restored the body. The word restaurant may derive from this restorative quality of bouillon. The broth came first; the establishment serving it took its name from the broth's effect.

Justus von Liebig, the German chemist, created the first commercial meat extract in 1847, concentrating bouillon into a thick paste that could be reconstituted with water. His Liebig's Extract of Meat became the commercial ancestor of bouillon cubes, introduced by Julius Maggi in 1908. The bouillon cube democratized French stock: no hours of simmering, no butcher's bones, just hot water and a small block of compressed, dried broth.

In French gastronomy, bouillon remains a technique as much as an ingredient. Consommé (clarified bouillon), velouté (bouillon thickened with roux), bisque (shellfish bouillon) — all begin with the boiled liquid. Auguste Escoffier's Le Guide Culinaire (1903) lists stock-making as the foundation of all professional cooking. The boiled water is the civilization's base.