roux

This term originates from French culinary tradition and describes a specific technique of thickening agents. It carries a connotation of foundational precision, as the color of the mixture (white, blond, or brown) dictates the flavor profile and the type of sauce being created.

As a mass noun, it is typically treated as uncountable in professional kitchen contexts. To refer to a specific quantity or a distinct batch, speakers use partitive constructions such as a small amount of roux or a batch of roux rather than pluralizing the term.