"Two types of potatoes help this creamy side dish stand out at warm weather get-togethers. People love the spicy mustard dressing. —Mary Relyea, Canastota, New York..."
INGREDIENTS
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2 pounds red potatoes (about 7 medium), cut into 1-inch cubes
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1 pound sweet potatoes (about 2 medium), peeled and cut into 1-inch cubes
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1/4 cup red wine vinegar
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1 tablespoon spicy brown mustard
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1-1/4 teaspoons salt
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1/2 teaspoon pepper
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1/2 cup reduced-fat mayonnaise
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1/4 cup 2% milk
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2 celery ribs, chopped
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1 small red onion, chopped
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1/3 cup minced fresh parsley