In reply to idiotproof:
Worked in an award winning restaurant where we used this recipe
1/2 pint Cream boiled with the inside of a vannila pod,
Add 2 egg yolks & 1 oz of Castor sugar
Cook on a very low heat in a bain marie for about an hour.
Remove from the water as they come out of the oven as they will cool better.
When cool sprinkle the top with a thin layer of brown sugar and glaze under a red hot grill or with a blowtorch (any good chef will have one).
This basic recipe can be added to with fruit (raspberry is good) or alcohol. the possibilities are endless.