
Thickening a sauce or soup without coconut-derived ingredients is easier than you might think, and this two-ingredient slurry is the proof. Arrowroot starch is a naturally plant-based thickener that has nothing to do with coconut, making it a clean, worry-free choice when you need to avoid that ingredient entirely. The technique is straightforward: whisk the starch with cold water until silky smooth, then stir it into your simmering liquid and watch it transform into something glossy and beautifully coated in under a minute. The key tip here is to pull the pan off the heat promptly β arrowroot is a bit finicky at high temperatures and will lose its thickening magic if you let it boil hard or linger too long. What you get in return is a light, delicate consistency that doesn't cloud your broth or weigh down a delicate pan sauce the way some other starches can. Keep this ratio in your back pocket and you'll have a reliable finishing move for soups, gravies, and stir-fry sauces whenever you need it.
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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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