Roux - Alternatives

Alternatives

Cooks can substitute for roux by adding a mixture of water and wheat flour to a dish that needs thickening, since the heat of boiling water will release the starch from the flour; however, this temperature is not high enough to eliminate the floury taste. A mixture of water and flour used in this way is colloquially known as “cowboy roux”, and in modern cuisine it is called a white wash, but is used infrequently since it imparts a flavor to the finished dish that a traditional haute cuisine chef would consider unacceptable. Cornflour (known as cornstarch in the United States) can be used instead of wheat flour, as less is needed to thicken, and it imparts less of the raw flour taste, and it also makes the final sauce more shiny.

As an alternative to roux, which is high in fat and very energy-dense, some Creole chefs have experimented with toasting flour without oil in a hot pan as an addition to gumbo. Cornstarch mixed with water (slurry), arrowroot, and other agents can be used in place of roux as well. These items do not contribute to the flavor of a dish, and are used solely for thickening liquids. More recently, many chefs have turned to a group of naturally occurring chemicals known as hydrocolloids. In addition to being flavorless and possessing the ability to act as a thickening agent, the resulting texture is often superior, and only a small amount is required for the desired effect.