The horseradish root is a close relative to and contains an eye-watering that produces the heat and spice for which horseradish powder is known. This , present in both mustard and horseradish, is called allyl isothiocynate. When the horseradish is not dried and powdered right away, the chemical begins to degrade and may produce a bitter rather than a hot taste.
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Normally you'll use horseradish powder in sauces and dips that aren't cooked. Cooking tends to break down the oil present in the horseradish powder and produces less heat. On the other hand, if you'd like a little bit of the flavor of horseradish without too much spiciness, you can use a bit of the powder in cooked sauces.
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Look for the powder of
horseradish next to other spices in local grocery stores. It might also be sold next to the 's section or meat section of a store. If you’re looking for wasabi, be sure to read the labels carefully to make sure you’re buying the "real" wasabi, You may locate this in the ethnic foods section of your grocery store, or in Asian grocery stores.
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