Sauces & Dressings Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. 
Serving
Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Béchamel Sauce
A silky white mother sauce of butter, flour, and milk used to build lasagna, gratins, croque monsieur, and creamy bakes.
Contains common allergens
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Good to know
- One-pot
- Ready in under 30 minutes
Matched from this dish's own ingredients and timing. Browse more: one-pot dinners30-minute meals
Instructions
5 steps- 1
Melt the butter in a saucepan over medium heat until foaming but not browned.
- 2
Whisk in the flour and cook the roux for 2 minutes, stirring constantly, without letting it color.
- 3
Pour in the warmed milk in a steady stream, whisking continuously to prevent lumps.
- 4
Simmer gently for 8 to 10 minutes, stirring, until the sauce thickens enough to coat a spoon.
- 5
Season with nutmeg, salt, and white pepper, then strain if needed before using.
Images are for illustrative purposes only, may be inaccurate, and do not guarantee the presence or absence of specific ingredients. Listahan Family Score™
72/100
Good fit for most families
Score reflects how well this recipe fits a typical busy household. In the app, your Family Score is personalized to your household's allergens, kids, and pantry.
Nutrition
per serving105
Calories
2 g
Protein
6 g
Carbs
8 g
Fat
Estimated per serving. Actual values depend on the brands and portions you use.
Listahan cooking guide
Chef notes & practical guide
Technique notes, ingredient swaps, serve-alongside ideas, storage guidance, and equipment for this recipe.
Cultural context
Bechamel is the white mother sauce of French cuisine, a simple emulsion of milk thickened with a butter-and-flour roux, named for a steward in the court of Louis XIV. It is the base for countless dishes, from lasagna and moussaka to mac and cheese and croque monsieur. Its value lies in being a neutral, creamy canvas that carries cheese, nutmeg, or whatever flavor a dish demands.
Listahan note
This version teaches the foundational roux-and-milk method gently, cooking the flour first and whisking in warm milk for a smooth, lump-free sauce ready to build on.
Technique cues
- Cook the flour in the butter for a minute or two before adding milk, so the sauce does not taste of raw flour.
- Whisk the milk in gradually and warm; adding it all cold and at once is the main cause of lumps.
- Simmer gently until it coats the back of a spoon, then finish with a grating of nutmeg, the classic touch.
Kitchen flow
- Parallel prep
- Warm the milk in one pot while you build the roux in another, so they meet at the right temperature.
- Make-ahead
- Make it ahead and press plastic wrap onto the surface to prevent a skin; reheat gently with a splash of milk.
- Leftover move
- Stir grated cheese into leftover bechamel for an instant cheese sauce, or layer it into a quick gratin.
- Cleanup rhythm
- Soak the pot and whisk right away, since dried roux is far harder to scrub off.
Ingredient brief
Role, handling, and swap guidance for each key ingredient.
butter
roux fat
Purpose: Butter combines with flour to form the roux that thickens the sauce and adds richness.
Handling: Melt over medium heat before whisking in the flour.
Adaptation: Olive oil for a dairy-lighter roux, though the flavor shifts.
all-purpose flour
thickener
Purpose: Flour is what gives the roux its thickening power and the sauce its body.
Handling: Whisk into the butter and cook briefly before adding milk.
Adaptation: A gluten-free flour blend or cornstarch slurry for a gluten-free version.
whole milk
liquid base
Purpose: Milk is the body of the sauce, providing its creamy texture and mild flavor.
Handling: Warm it before adding so it incorporates smoothly into the roux.
Adaptation: Unsweetened plant milk, with a slightly different flavor and thickness.
nutmeg
classic aromatic
Purpose: A little freshly grated nutmeg is the traditional warm note that defines a French bechamel.
Handling: Grate fresh and add at the end, just a pinch.
Adaptation: A pinch of white pepper for warmth without the nutmeg flavor.
salt
seasoning
Purpose: Salt is essential, since the sauce is otherwise mild and needs seasoning to come alive.
Handling: Season toward the end and taste.
Adaptation: A small piece of onion or bay leaf steeped in the milk adds savory depth alongside the salt.
Technique notes
- Steeping the milk with a bay leaf, a clove-studded onion, and peppercorns before straining gives a far more aromatic sauce.
- Whisking constantly as the sauce thickens prevents the bottom from catching and scorching.
- Adjusting the roux ratio gives you a thin pouring sauce or a thick binding one for lasagna or croquettes.
Ingredient swaps
- Gluten-free direction
- Use a cornstarch slurry whisked into the warm milk in place of the flour roux.
- Dairy-free option
- Build the sauce with olive oil and unsweetened oat or soy milk for a vegan bechamel.
- Lighter direction
- Use low-fat milk and a touch less butter for a leaner sauce, accepting a slightly thinner body.
Serve alongside
- Layered into lasagna
- Croque monsieur
- Vegetable gratin
- Moussaka
- Dry white wine
- Sparkling water
- Light lager
Serving suggestions only — check pairings for your household's allergens.
Storage & reheating
- Keep refrigerated with plastic wrap pressed to the surface for up to three days; reheat gently while whisking and thin with milk as needed.
- It can be frozen for up to a month, though it may need vigorous whisking to come back together on thawing.
Equipment
- Heavy saucepan
- Balloon whisk
- Fine grater
- Second small pot for milk
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