
Thickening a sauce or soup without reaching for a packet of mystery seasoning or a processed starch blend is easier than most people think. Arrowroot starch is a clean, single-ingredient thickener that contains no additives, flavor enhancers, or hidden flavor boosters β making it a reliable go-to when you need to keep things pure and simple. Just two ingredients and a quick whisk are all it takes to build a smooth, lump-free slurry that transforms a thin broth or sauce into something glossy and beautifully coated. The key is adding it to a gently simmering liquid while stirring constantly, then pulling the pan off the heat as soon as it thickens β arrowroot works fast and doesn't need prolonged cooking. The result is a light, silky consistency that lets the natural flavors of your dish shine without any interference. Keep this technique in your back pocket and you'll never need to grab a pre-mixed thickener again.
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Combine the arrowroot starch and cold water in a small bowl and whisk or stir with a fork until completely smooth with no lumps remaining.
Bring the liquid you want to thicken (sauce, soup, or broth) to a gentle simmer in a saucepan over medium heat.
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