Add mayonnaise, sour cream, Worcestershire, white wine vinegar, garlic powder, salt, fresh ground black pepper and remaining blue cheese crumbles.
1/2 cup mayonnaise, 1/2 cup sour cream, 1/2 teaspoon Worcestershire sauce, 2 teaspoons white wine vinegar, 1/4 teaspoon garlic powder, 1/4 teaspoon salt or to taste, 1/2 teaspoon freshly cracked black pepper