Classic Béchamel Sauce {Salsa Bechamel}

The day I took a French sauces course in Paris remains one of the best days of my culinary life. Standing in that kitchen, learning how to make the five mother sauces from a French chef, I realized that mastering béchamel sauce would forever change my home cooking. This creamy, versatile salsa béchamel is the foundation for countless dishes you already love - from mac and cheese to creamed spinach to seafood gratins.

What makes this béchamel sauce recipe special is its simplicity - just butter, flour, milk and seasonings transform into a silky, versatile base that makes everything it touches better. From that Parisian kitchen to your stovetop -  here’s the béchamel sauce to rule them all!

For more creamy sauces to elevate your menus, try my Creamy Parmesan Sauce and Lemon Butter Sauce.

What You'll Need to Make Béchamel Sauce

Before we get to the step by step directions, a note about the ingredients:

• Butter: salted butter is my preference, but use unsalted and then season to taste. If you're looking for a vegan sauce, substitute plant butter and plant milk.
• Seasonings: while salt is essential, white pepper and nutmeg are minimal and optional. I do love the flavor with them both, so use if you have!

Full ingredient list and measurements included in the printable recipe card below.

Step by step instructions:

1. Make roux

Melt butter in a small saucepan over medium-low heat. Once melted, whisk in the flour and cook the paste for about 2 minutes. Ensure the paste cooks long enough to remove the raw flour flavor from your sauce.

The goal is to cook the flour without browning the paste at all. This is called a white roux, and it's an important step in making a classic béchamel.

2. Add dairy

Increase heat to medium. Add one cup of milk to the paste and whisk vigorously to combine.

Let the mixture heat through and start to simmer - about 45 seconds. Then add the last cup of milk and whisk to combine. Cook for about 2 minutes until the sauce has reached the desired consistency.

3. Thicken and season sauce

This sauce recipe creates a medium sauce thickness - I find it the perfect texture for most applications, such as pasta sauce, cheddar cheese sauce for macaroni, or béchamel for lasagna recipes. If the sauce can stand up on either side of the traced line, it has reached the desired thickness.

If you find a thick sauce that you want a bit thinner, add a tablespoon or two of milk and whisk it well. Let the sauce come back up to a simmer and evaluate the viscosity of the sauce again. Just a little milk usually does the trick.

Season with ½ teaspoon salt, a pinch of white pepper and fresh ground nutmeg.

4. Serve and enjoy

Taste and adjust seasoning. 

How to adjust béchamel thickness?

Need a thicker sauce? Make a beurre manie (equal parts butter and flour kneaded together). Start with two teaspoons each of softened butter and flour, combine well, then whisk into the simmering sauce.

For a thinner sauce, simply add a tablespoon or two of milk and whisk well. Return to a simmer and check the consistency.

Do I need to heat the milk first before adding to roux?

I've made béchamel countless times and found no significant advantage to heating the milk beforehand. Cold milk works perfectly fine and simplifies the process.

Can I customize the seasonings?

The traditional French version uses an onion studded with cloves and a bay leaf. I've simplified the recipe while maintaining the authentic flavor profile. Feel free to add herbs or spices depending on your dish - dill or tarragon for fish, a touch of cayenne for mac and cheese, or garlic for pasta sauces.

Can I use black pepper instead of white pepper?

You can! With black pepper, the bechamel sauce takes on a decidedly southern country gravy feel - which I love. But if you're using it as a cream sauce in a souffle or lasagna, I'd recommend sticking with the white pepper

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