Place chocolate, brandy and vanilla in the top of a double boiler filled with boiling water, place over medium heat and cook until chocolate is melted.
2
Remove from heat, but leave melted chocolate in the double boiler.
3
Add the yolks and mix until incorporated.
4
Meanwhile, place milk in a small pot over medium heat and scald it.
5
Immediately remove from heat and slowly pour over the melted chocolate, stirring constantly.