INGREDIENTS
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6 tablespoons butter
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2 large onions, sliced
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1 cup packed brown sugar
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1/2 (28 ounce) bottle ketchup
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3 tablespoons cider vinegar
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1 1/2 teaspoons spicy brown mustard
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1 tablespoon Worcestershire sauce
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2 teaspoons hot pepper sauce
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1 pound kielbasa sausage, cut into 1 inch pieces