In a medium mixing bowl, combine mayonnaise, anchovy paste, Worcestershire sauce, and Dijon mustard. Stir until smooth and well blended.
Add crushed garlic, black pepper, and a pinch of salt. Mix thoroughly so the garlic distributes evenly.
For the best flavor, let the dressing chill in the refrigerator for about 30 minutes. This gives the garlic time to infuse and the flavors to meld together.
Wash and chop Romaine. See above for my tips for this.
Add dressing to lettuce, stir and enjoy! Add parmesan and croutons, if desired.