In a double broiler add:
2/3 cup milk
1 egg yolk
1/4 cup sugar
splash of vanilla
Cook until slightly thickened.
Pour custard sauce in individual cups.
Chill.
Serve either for breakfast or as a dessert item
variations:
top with a dollup of whipped cream or
top with fresh blueberries, blackberries, raspberries or strawberries