Learn how to make a roux, step by step, with our easy guide. Used for thickening sauces, soups and gravy, knowing how to make a roux is an essential piece of cooking knowledge that will come in handy again and again.
What is a roux?
A roux is a thickening agent for soups and sauces. Made by cooking flour with oil or butter until the raw flavour of the flour cooks out and the roux has achieved the desired colour, a good roux gives dishes silky-smooth body and a nutty flavour.