That is pretty much how I do mine except I make my roux a lot darker. I usually go for about 45 minutes to get like a mahogany color.
BTW... for those of you who are apprehensive to do a roux... Emeril offered the best explanation ever... The perfect amount of time to stir a roux is the time it takes to drink two adult beverages. Plus if you burn the roux you get to have two more adult beverages!!!
[SIZE="2"][FONT="Comic Sans MS"]Food! It's the second most important thing to a young man, and the most important to an old one.[/FONT][/SIZE]
Smokin Gators BBQ Team
Medium Amazin' Blue Spicewine - It's a Swamp Thing
Large BGE - Adopted
Medium BGE - Adopted
Weber 22 inch w/mods
Weber Genesis Silver C Gasser
Constant wood lurker