
Béchamel is one of those foundational sauces that makes everything it touches taste more luxurious — think lasagna, moussaka, croque monsieur, or a bubbling gratin fresh from the oven. The problem with store-bought white sauces and many processed dairy products is that carrageenan, a common thickener derived from seaweed, tends to sneak into the ingredient list. Making this sauce from scratch sidesteps that entirely, because the thickening here comes purely from a classic butter-and-flour roux, not any additive. Whole milk, unsalted butter, and all-purpose flour are all you need to build a silky, coating sauce that clings beautifully to pasta or vegetables. A pinch of nutmeg and white pepper give it that subtle warmth that separates a truly great béchamel from a bland one. The technique is straightforward — patient whisking and a slow pour of milk are really the only secrets — and the result is a glossy, restaurant-quality sauce you made entirely with ingredients you can actually read and trust.
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Melt the butter in a medium saucepan over medium heat until foamy but not browned.
Add the flour all at once and whisk constantly for 1 to 2 minutes, until the mixture turns a pale straw color and smells faintly nutty — this cooks out the raw flour taste.
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