A classic French white sauce made with butter, flour, and milk. This smooth, creamy sauce is the base for many dishes like lasagna, croque monsieur, and macaroni and cheese.
5 min prep
10 min cook
4 servings
120 kcal/serving
Ingredients
2 tablespoons unsalted butter
2 tablespoons all-purpose flour
2 cups whole milk, warmed
1/2 teaspoon salt
1/4 teaspoon white pepper
1 pinch ground nutmeg
Instructions
In a medium saucepan, melt butter over medium heat.
Add flour and whisk constantly for 1-2 minutes until the mixture is bubbly and pale golden (do not brown).
Gradually pour in warm milk while whisking vigorously to prevent lumps.
Continue to cook, whisking frequently, until the sauce thickens and comes to a gentle simmer, about 5-7 minutes.
Remove from heat and stir in salt, white pepper, and nutmeg.
For a smoother sauce, strain through a fine-mesh sieve if desired.
Tips
For a richer sauce, use half-and-half or add a splash of heavy cream.
To prevent a skin from forming, cover the surface with plastic wrap directly or dot with butter.
Store in the refrigerator for up to 3 days; reheat gently, adding a little milk if needed.