Recipe from Alton Brown
http://altonbrown.com/eggnog-recipe/

Ingredients:
12 large eggs (pasteurized if you need peace of mind)
1 pound sugar
1 pint half-n-half
1 pint whole milk
1 pint heavy cream
1 cup Jamaican rum
1 cup cognac
1 cup bourbon
1 teaspoon freshly grated nutmeg (plus more for serving)
1/4 teaspoon kosher salt

Instructions:
See Alton Brown’s website