How to Make a Roux: Blonde, Brown, and Dark Varieties
Quick take: A roux is a cooked mixture of flour and fat that thickens soups, sauces, and gumbos. The longer you cook it, the deeper the flavor—but the less thickening power it has.
A roux is the foundation of countless sauces and dishes, from béchamel to gumbo. The process is simple, but timing matters enormously. Start by melting equal parts butter and flour in a skillet over medium-low heat, whisking constantly to prevent burning.
For blonde roux (2-3 minutes), cook until the mixture is pale gold and smells slightly nutty. This is perfect for béchamel sauce, cheese sauces, and creamy soups. It has maximum thickening power but milder flavor.
Brown roux (5-7 minutes) develops a deeper amber color and richer, toasty flavor. Stir constantly as it transitions from blonde to brown—it can go from perfect to burnt quickly. Use it for brown sauces, gravies, and Louisiana-style dishes.
Dark roux (10-15 minutes) reaches a deep mahogany brown with an intense, almost chocolate-like complexity. Classic in gumbo and étouffée, it provides incredible flavor but minimal thickening ability.
Pro tip: Make a large batch and store it refrigerated for up to a month. Portion it into ice cube trays for easy additions to future dishes.