Celebration Eggnog

Beat the egg yolks until they are light yellow. Add 2/3 cup of the sugar and beat well. The yolks should be beaten until they are thick and lemon-colored. Slowly add the bourbon, beating all the time. Set aside. In another bowl, beat the egg whites until they are stiff but not too dry, add the remaining 1/3 cup sugar a little at a time as you beat. Then, slowly pour the egg-sugar-bourbon mixture into the egg whites, folding it in ever so gently. Whip the cream and fold it into the mixture. Warm the mixture just a bit to serve. Sprinkle with nutmeg. The eggnog can also be served chilled.