Slowly boil the cream and vanilla bean. Stir together egg yolks and sugar until the mixture forms a band and has turned pale yellow. Beat the cream mixture in the egg yolks in a thin stream while stirring vigorously (this so that the egg yolks do not coagulate). Divide this into 4 bowls. Bake in an oven at 175 degrees for 30 minutes or until stiff. Try with a skewer or match, if nothing is stuck on the needle they are done.
If the molds are high (3-4cm), you can reduce the baking time to get a creamy consistency in the middle, this is seen if you try with the baking needle in the middle and it is stuck a bit.
You can make Crème Brûlée the day before, and then you only need to have brown sugar on and caramelise it in the oven under the grill or use a ski burner before dinner