Mix the salad components (except for the crouton) and refrigerate.
In a food process or blender, mix the anchovies, egg, lemon juice and sauce.
With the machine running, slowly add the olive oil to emulsify.
Toss the salad in the dressing. Add the croutons and serve, passing around the black pepper mill.
The dressing can be made 1 day in advance.
* How to coddle an egg:
Bring the eggs to room temperature (about 30 minutes.).
At the same time, bring water to a boil in a small saucepan.
While the water is heating up, prepare an ice bath which is simply a bowl full of ice water). Set aside.
Place egg in a separate bowl or mug. Pour hot water over the egg and time for exactly one minute.
Spoon out the egg and gently plunge into the ice water bath.