Ok now I can breathe! WHEW!!!
When I saw the title of the post I got a mental image of gumbo with avacado and tofu in it! Then I saw it was you posting it and I knew it would be legit.
I agree about the Roux and the smell. This is the best way that I can describe it. Most everyone has smelled burnt popcorn from someone leaving a bag in the microwave too long. Well there is another smell when the popcorn ALMOST burns but just gets a little bit toasted and brown. That is almost the same smell to me as a properly done dark roux.
Excellent job brother!