INGREDIENTS:
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1 1/2 sticks (12 tablespoons) unsalted butter
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1/2 cup sriracha (Asian chile sauce) or hot pepper sauce such as Frank's Red Hot sauce
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1/4 cup white-wine vinegar
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Heat butter, sriracha, vinegar, and 1/4 teaspoon salt in a small saucepan over medium heat, stirring, until butter is melted.