Heat oven to 350° F.
In a saucepan, mix sugar and water. Heat the saucepan over high heat until a brown caramel is obtained.
Pour quickly into a soufflé dish (10-inch) and allow caramel to cover bottom and walls by rotating the dish.
Use an oven mitt to protect your hand - caramel is hot!
In a bowl, beat eggs until you get a lemon color. Add sugar, milk and vanilla, and stir.
Pour the mixture into the caramelized dish. Place the dish in a big rectangular pan on the oven rack.
Pour boiling water into the rectangular pan (not into the caramelized dish!) to a depth of 1 inch.
Bake 40 minutes at 350° F.
Remove from oven and allow to cool, then put into the refrigerator. Unmold before serving.
Bon appetit!