Mustard Free Arrowroot Thickening Slurry

Thickening a sauce or soup without reaching for a spice blend that might hide unwanted ingredients is easier than most people think. Arrowroot starch is a clean, neutral-flavored alternative to cornstarch or flour-based roux, and it contains absolutely nothing that could sneak in a hidden allergen. Just two ingredients — arrowroot starch and cold water — are all you need to turn a thin broth or pan sauce into something glossy and restaurant-worthy. The key is whisking the slurry until it's completely lump-free before it ever touches heat, then stirring constantly as it hits the simmering liquid. That brief 30-to-60-second window is where the magic happens: the sauce transforms into a silky, light coating consistency right before your eyes. Pull it off the heat promptly, because arrowroot is a bit temperamental with prolonged high heat — respect that one rule and you'll get perfect results every time. It's a genuinely useful technique to have in your back pocket for gravies, stir-fry sauces, fruit compotes, and beyond.

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