How long does it take to make dark roux?
There is no fixed time—it depends on heat level and pot size. The process takes significant time as the roux progresses from light tan to peanut butter to caramel to deep chocolate color. Constant stirring is non-negotiable to prevent burning.
What happens if I stop stirring?
The roux will burn unevenly. Constant stirring distributes heat evenly and prevents dark spots or scorched flour, which would ruin the flavor and texture.
Why does oil separate from the cooled roux?
As the roux cools, excess oil naturally rises to the surface. Pour off the top layer and optionally blot with a paper towel to achieve the desired consistency.
Can I make dark roux ahead of time?
Yes. Cool it completely at room temperature, remove excess oil, and store for later use as a gumbo base.
What pot should I use?
A heavy-bottomed pot or cast iron skillet distributes heat evenly and prevents hot spots that can cause burning.