
Béchamel is one of those foundational sauces that makes everything it touches taste more luxurious — think creamy lasagna layers, bubbling gratins, or a silky base for mac and cheese. This version keeps things beautifully simple, built from just butter, flour, whole milk, and a whisper of nutmeg and white pepper. For anyone navigating tree nut allergies or sensitivities, a classic white sauce can actually be a minefield in restaurant kitchens where shared equipment and cross-contact are common concerns — making a homemade batch the smartest move. Every ingredient here is straightforward and easy to verify, so you know exactly what's going into the pot. The technique is all about patience: cooking the flour in butter until it smells faintly nutty, then adding the milk gradually while whisking to build that glossy, lump-free texture. Once it coats the back of a spoon with that clean, velvety consistency, you'll understand why French cooking has relied on this sauce for centuries. Make it fresh and use it right away, or press plastic wrap directly onto the surface to keep it smooth until you're ready to go.
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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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