INGREDIENTS
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1/2 small red onion, cut into 1/4-inch-thick slices
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Ice water
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1/2 red bell pepper, cut lengthwise into 1/4-inch-wide strips $
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1/2 yellow bell pepper, cut lengthwise into 1/4-inch-wide strips $
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1/2 green bell pepper, cut lengthwise into 1/4-inch-wide strips $
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1 cup white vinegar
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6 tablespoons sugar $
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2 tablespoons kosher salt
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1/2 teaspoon dried crushed red pepper