Breakup the blue cheese in a bowl with a fork. Add the mayonnaise, sour cream, buttermilk, vinegar, Worcestershire sauce and black pepper. Whisk to combine. Add salt to taste.

Cut the lettuce into four to six wedges. Cover each wedge generously with blue cheese. Top with tomatoes, bacon, red onion and blue cheese crumbles. Top with freshly ground black pepper to taste.

Serve on a cold plate with a cold fork. It really makes a difference.