Blue cheese dressing

In the United States and Canada, blue cheese dressing serves as a side sauce, salad dressing, and dip. It blends blue cheese with mayonnaise and buttermilk, sour cream, or yogurt, plus milk, vinegar, onion powder, and garlic powder. A vinaigrette version uses salad oil, blue cheese, vinegar, and optional seasonings. Most major producers and restaurants in the region offer their own take, and it is often paired with Buffalo wings or raw vegetables.