"To create a roux" means to combine equal parts of fat (such as butter) and flour, and cook them together over low heat until they become a thick paste. It is used as a base for sauces, soups, and gravies, and it helps to thicken and add flavor to the dish.
Full definition
In a separate bowl,
create a roux by whisking together the flour with the remaining two tablespoons of olive oil, the nutritional yeast, and soy sauce.
Stir in flour and cook, stirring constantly, for 3 minutes to
create a roux.
I create a roux using flour and butter.
Once it's sizzling, whisk in the flour to
create a roux.
As soon as butter starts to bubble, add the half cup of flour... And quickly begin to whisk the butter and flour together to
create a roux.
* While some fat is needed to
create a roux, too much makes a broken, greasy mess.
Whisk together to
create a roux and cook for 1 - 2 minutes until mixture gets a bit golden in color.