Basic Crème Anglaise for Vanilla Ice Cream

This is the recipe to use in all Savoie desserts calling for crème anglaise, and as a companion to the Gâteau de Savoie. It makes 3 cups of custard, which would serve 12 people; in addition to the vanilla, you may add any liqueur of your choice or any other flavoring such as grated citrus rind or infused herbs. Do not use a double boiler; this custard is very easy to make and cooks in a matter of minutes provided you follow the direction