Mastering the art of making a perfect roux is a game-changing skill that elevates countless sauces and gravies. This foundational French technique combines flour and fat into a rich, smooth thickening agent that forms the base of classic dishes like gumbo, béchamel, and creamy soups.
In just 31 minutes, you’ll learn how to create this essential kitchen building block that professional chefs rely on daily. Whether you’re aiming for a light blonde or deep brown roux, these simple steps will help you achieve the ideal consistency every time.
Ingredients for Classic Roux

- Fat (1/2 cup): Choose from butter, oil, lard, meat drippings, or ghee – ensure it’s at room temperature for smooth blending
- All-purpose flour (1/2 cup): Measured precisely for the perfect 1:1 ratio with fat
Step-by-Step Instructions
- White Roux: Heat your fat in a sturdy saucepan over medium heat. Whisk in flour until fully combined. Cook for 2-5 minutes until bubbly and foamy
- Blonde Roux: Continue stirring steadily for 5-10 minutes until mixture transforms into a lovely peanut butter shade
- Brown Roux: Reduce heat to medium-low, maintain constant stirring for 5-15 minutes total. The aroma becomes wonderfully nutty, and color deepens to milk chocolate
- Dark Roux: For the deepest flavor, keep stirring for additional 20+ minutes until reaching dark chocolate color. Remember to watch carefully to prevent scorching
- Quality Check: If you notice any burnt smell, it’s best to start fresh – the perfect roux is worth the patience!
Cooking Techniques
Making a roux is all about patience and attention! Keep your eyes on the pan and stir continuously – this prevents burning and helps create those beautiful color changes. A wooden spoon or whisk works great for stirring.
The magic happens when you see the mixture bubble and foam, then slowly darken. Think of it like toasting nuts – the darker it gets, the deeper the flavor becomes!
Variations & Substitutions
You can play around with different fats to make your roux! Butter adds a rich, classic taste that’s perfect for cream sauces.
Vegetable oil works great for darker roux and Cajun dishes. Bacon fat brings amazing flavor to gravy, while duck fat makes an extra-special sauce. Can’t have wheat flour? Rice flour makes a nice gluten-free roux, though it might need a bit more cooking time.
Storage Tips
You can make roux ahead of time! Once it’s cooled completely, store it in an airtight container in the fridge for up to a month. Some cooks even freeze their roux in ice cube trays – just pop out a cube whenever you need it.
If your stored roux separates, just give it a good stir before using. When reheating, warm it gently and whisk to smooth out any lumps.
Common Uses
Each type of roux has its perfect match! White roux is amazing for creamy mac and cheese or béchamel sauce. Blonde roux makes wonderful chicken pot pie filling or gravy. Brown roux adds depth to beef stews and mushroom sauces.
That dark roux? It’s the foundation of gumbo and other Cajun classics. The darker your roux, the less thickening power it has, but the more flavor it brings!

How to Make a Roux
Equipment
- small heavy saucepan
Ingredients
- 1/2 cup fat: oil, butter, lard, meat drippings, ghee
- 1/2 cup flour
Instructions
- White roux: In a small heavy saucepan melt fat over medium heat. Add flour, whisking to incorporate fully, and stir for 2-5 minutes until the mixture is bubbly and foamy.
- For Blonde Roux: Continue cooking and stirring for 5-10 minutes, until the mixture turns a light caramel or peanut butter color.
- For Brown Roux: In order to avoid burning your roux, turn down the heat to medium-low and keep stirring. You’ll need to keep cooking for an additional 5-15 minutes. For a total of (15-25 minutes). The roux will take on a nutty aroma when it’s done and turn a milk chocolate brown.
- For Dark Roux: Continue cooking and stirring for an additional 20+ minutes, or until the roux is a dark chocolate color. Be careful not to burn it! If it smells burned at all, you need to start over.