Roux (Roo)
Roux is a French word that refers to cooked flour and fat that is used to thicken a sauce or gravy.
Useful Links:
Tips for Using a Roux – Resource – Smart Kitchen | Online Cooking School
Fun related videos

How To Make And Use A Roux

Culinary Classroom Lesson 6: Roux

How to Make a Roux

How To Make A Roux

Easy Cooking Tips : Make a Roux
How To Make And Use A Roux
Source: Jacob Burton
Culinary Classroom Lesson 6: Roux
Source: Dave Hegnauer
How to Make a Roux
Source: The Culinary Institute of America
How To Make A Roux
Source: escoffierschool
Easy Cooking Tips : Make a Roux
Source: expertvillage