Trim head of Romaine lettuce, discarding huge stems and any brown spots. Rinse and shake off any moisture; dry well. Cut into bite sized pieces. Chill until ready to use.
In a glass measuring cup, bring 1/2 cup water to boil in the microwave. Remove water from microwave. Place the egg into the hot water for 1 minute, remove and rinse with cold water and set aside. (This process is called coddling, and kills any harmful bacteria.)
Using a garlic press, push the garlic through. Smash three anchovies through the press also. Place garlic and anchovies in a medium bowl and continue to smash together with a fork until no clumps remain.
Add dry mustard, Worcestershire sauce, and salt; blend well.
Separate egg and place the egg yolk into the anchovy paste, blending well. Pour olive oil into anchovy paste in a SLOW, steady stream, blending all the while. Add red wine vinegar; blend well.
Add 1/4 cup Parmesan cheese to dressing and blend. Squeeze some fresh lemon juice into dressing. Season with fresh ground black pepper.