Yield: about 6 cups 1-1/4 cups milk 1 cup buttermilk 2-1/4 cups mayonnaise 1/4 cup cider vinegar 1/2 cup grated Parmesan cheese 1/4 teaspoon pepper 1 tablespoon garlic salt 1-1/2 cups sour cream In mixing bowl, combine milk, buttermilk, mayonnaise, Read More …