Blue Cheese Dressing
["1/2 c. buttermilk", "1 small onion, chopped fine", "1 clove garlic, minced", "4 oz. Blue cheese, crumbled", "2 c. mayonnaise"]
["Mix first 4 ingredients well.", "Stir mayonnaise into above mixture; refrigerate for 12 to 18 hours."]
["buttermilk", "onion", "clove garlic", "cheese", "mayonnaise"]