Creamy, velvety, and endlessly versatile, this classic white sauce is the kind of kitchen staple that elevates everything it touches — from pasta bakes to gratins to simple roasted vegetables. For anyone managing a nickel sensitivity, building sauces from scratch is often the safest route, since many store-bought versions and processed condiments can hide high-nickel ingredients like whole grains, legumes, or certain additives. This recipe keeps things beautifully simple: butter, flour, whole milk, and a whisper of nutmeg and white pepper — all ingredients that sit comfortably low on the nickel scale. The technique matters here, and the instructions walk you through it step by step, from cooking out the raw flour taste to achieving that perfect spoon-coating consistency. Whisking continuously as the milk goes in is the real secret to a sauce that's silky smooth rather than lumpy. A pinch of nutmeg at the end adds warmth and a subtle complexity that makes this taste far more special than its short ingredient list suggests. Once you have this in your repertoire, you'll find yourself reaching for it constantly.
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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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