Place in the oven a baking pan with 1 inch of water in it to heat. In a separate
bowl. Beat egg yolks with sugar until thick and creamy. Add very gradually to the
cream, stirring constantly with a wooden spoon. Add vanilla extract and the 6 tablespoons
Grand Marnier; mix well. Pour mixture into pot de creme cups and place in the baking
pan of water in the oven.
Bake for 35 minutes or until a knife inserted in the center
of the custard comes out clean.
Remove from the oven and pan of water and cool completely.
Chill in the refrigerator
for at least 2 hours.
At serving time, blend grated orange rind with the 1 tablespoon Grand Marnier
and "ice" the tops of the custards with the mixture.