FoodNetwork.com and BrownEyedBaker.com both feature recipes for old-fashioned eggnog. Emeril Lagasse developed the recipe featured on FoodNetwork.com. SpicieFoodie.com also offers a recipe for non-alcoholic old-fashioned eggnog.
To make Emeril Lagasse''s recipe for old-fashioned eggnog, combine 1 quart of milk, 1/2 cup of confectioner's sugar and 1 vanilla bean and its seeds in a saucepan. Bring to a low boil, then remove from heat. In a medium bowl, beat the yolks of 12 large eggs until thick and pale. Slowly add 1 cup of the hot milk mixture, stirring constantly, then add the egg yolk mixture to remainder of the hot milk in the saucepan.
Cook the mixture over medium heat, stirring constantly, until it begins to thicken. Remove the mixture from the heat and strain through fine mesh into a large plastic container. Place plastic wrap over the surface of the mixture and refrigerate for at least 4 hours.
Once the mixture is chilled, beat the whites of 12 eggs in a large bowl until soft peaks form. Add 1/4 cup of confectioner's sugar and continue beating until stiff peaks form. In another bowl, beat 2 cups of heavy cream until thickened, then add 1/4 cup of sugar and continue beating into soft peaks. In a punch bowl, combine the chilled egg mixture with 2 cups of bourbon and 1 cup of brandy.
Fold in the whipped cream, then the egg whites, and chill the whole mixture for at least 30 minutes. Garnish with nutmeg and chocolate shavings before serving, if desired.