I got this recipe from a man I worked with in the 1980's. He made a
batch and gave everyone in the department a bottle Nog along with this
recipe:

18 eggs
1-1/2 lbs. sugar
2 quarts milk
1 quart of cream
(or you can use 2 quarts of half & half and 1 quart of milk)
1/5 rye whiskey
1/2 pint brandy
1/2 pint light rum

Separate 18 eggs. Using a plastic bucket (2 gallon capacity) and a
WOODEN SPOON, mix egg yolks and sugar together until you get a creamy
batter. Add the whiskey, brandy and rum. Keep stirring to avoid
curdling. Add the milk and cream, still stirring. Use a blender to mix
the eggs white to a froth. Add the egg whites to the mixture and fold
under. Makes 7 quarts

Jill