In a medium-sized saucepan, melt the butter over medium-low heat until it’s fully melted and begins to bubble gently.
Gradually whisk in the flour, ensuring that it’s fully incorporated into the butter. The mixture should be smooth without any lumps.
Continue cooking the mixture, stirring constantly, for about 8 to 10 minutes, or until it reaches a pale yellow color and emits a nutty aroma. This indicates that the flour has been sufficiently cooked and the roux is ready.
If desired, season with a pinch of salt to taste.
Use immediately in your sauce recipe, or allow it to cool and store in an airtight container in the refrigerator for up to a week.
Tips & Tricks
Consistent, moderate heat is key to preventing the roux from burning. If you notice any signs of browning too quickly, reduce the heat.
A whisk is the best tool for incorporating the flour into the butter and ensuring a smooth texture.
For a thicker sauce, use the roux early in its cooking process. For a thinner, more delicate sauce, let the roux cook a bit longer.
Roux can be made in larger batches and stored in the refrigerator or freezer. Simply scoop out the desired amount when needed.
Mise en Place
Ingredients
Utensils
Unsalted butter
All-purpose flour
Salt (optional)
Medium-sized saucepan
Whisk
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