
Butter, flour, salt, and a whisper of fresh herbs — that's all it takes to build one of the most useful foundations in cooking. This roux comes together in just a few minutes on the stovetop, cooked low and slow until it turns a pale straw color and smells faintly nutty, which means the raw flour taste is gone and the magic is ready to happen. From there, whisk in warm milk for a silky béchamel or swap in broth for a clean velouté — either way, you're in control of every single ingredient that goes into your sauce. That matters a lot when you're managing fructose sensitivity, because store-bought gravies, cream sauces, and soup bases are notorious for sneaking in onion powder, garlic, high-fructose corn syrup, or other hidden triggers. Here, the ingredient list is short, honest, and completely free of those concerns. The optional thyme and parsley add a bright, savory lift without introducing any problematic sugars, and the finished sauce freezes beautifully in tablespoon portions so you always have a safe base on hand.
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Melt the butter in a small heavy-bottomed saucepan over medium-low heat until fully melted and just beginning to foam, about 1 minute. Do not let it brown.
Add the flour all at once and stir immediately with a wooden spoon or silicone spatula, working the mixture into a smooth paste. Continue stirring constantly for 2–3 minutes, until the roux smells faintly nutty and turns a pale straw color — it should pull away from the sides of the pan slightly and look dry on the surface.
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