
Silky, rich, and deeply satisfying, this classic French white sauce is one of those foundational recipes every home cook should have in their back pocket. It comes together with just a handful of pantry staples — butter, flour, milk, and a whisper of nutmeg — so there's no need to reach for processed or packaged alternatives that might carry unwanted additives. For anyone avoiding nitrates and nitrites, the beauty here is in the simplicity: every single ingredient is clean and straightforward, with nothing cured, preserved, or processed in sight. The technique is all about patience — cooking the butter and flour together first, then slowly incorporating warm milk until the sauce transforms into something velvety and luscious. That final seasoning of white pepper and nutmeg gives it a subtle warmth that elevates everything it touches, from lasagna and gratins to steamed vegetables and pasta bakes. Press a sheet of plastic wrap directly onto the surface if you're not using it right away, and it holds beautifully until you're ready to pour it over whatever needs a little luxurious finishing touch.
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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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