Bechamel
Milk, butter, flour. Three dependencies, zero excuse for wallpaper paste.
Ingredients
- 30 g unsalted butter
- 30 g all-purpose flour
- 500 ml whole milk, warmed
- 2 g fine salt to start; more to taste
- Pinch of white or black pepper
- Small pinch of ground nutmeg, optional
Measures: 1 tbsp = 15 ml; 1 tsp = 5 ml. Yields are approximate. Pan width and heat affect reduction time; the texture gets the final vote.
Method
Cook the roux
Melt the butter in a saucepan over medium-low heat. Stir in the flour and cook for 2–3 minutes, stirring constantly. Keep it pale; this is a white sauce, not a toast experiment. Roux is simply flour cooked in fat.
Add milk gradually
Take the pan off the heat. Whisk in a small splash of milk until completely smooth, then add the rest in several additions. Scrape the corners where flour likes to hide.
Simmer gently
Return to medium-low heat and bring to a gentle simmer while stirring. Cook 10–15 minutes, stirring often, until the flour taste is gone and the sauce coats a spoon.
Season
Add salt, pepper, and optional nutmeg. Thin with a little milk if needed. It thickens further as it cools.
Checkpoint: Smooth, pourable, and able to coat a spoon without sitting in a lump.
Failure modes and fixes
Lumps: whisk hard or pass through a fine sieve. Too thick: add warm milk a tablespoon at a time. Scorched bottom: move unburned sauce to a clean pan without scraping; discard if bitterness has spread.
More rescue techniques →Put it to work
Lasagna, gratins, or vegetables. For Mornay, remove from heat and stir in 75 g grated Gruyere plus 25 g Parmesan. Do not boil the cheese into a disciplinary problem.
Storage and reheating
Cool promptly in shallow containers and refrigerate within 2 hours (1 hour above 90°F / 32°C). Keep at 40°F / 4°C or colder for 3–4 days, or freeze in portions. Bring reheated cooked sauces to a rolling boil; for butter-finished sauces, ideally store the base and add fresh butter after reheating. Cream sauces may separate after freezing. Storage and handling reference.