4. Define a roux and its purpose. B. How does one get a roux to change color?

roux is a mixture of flour and fat, typically used as a thickening agent in sauces, soups, and stews. The purpose of a roux is to create a smooth, thick consistency and to add flavor and body to the dish.<br /><br />To change the color of a roux, you need to cook it for a longer period of time. The longer you cook the roux, the darker it will become. This is because the flour in the roux undergoes a process called the Maillard reaction, which causes the molecules in the flour to break down and form new compounds that have a darker color. This process also contributes to the development of flavor in the roux.