During the holiday season, my drink of choice is always eggnog. Many flavors exist, but making it from scratch is better than any store-bought eggnog.
In a medium bowl, use a hand mixer to whisk egg yolks and sugar together until creamy
In a medium saucepan, over medium-high heat, combine the heavy cream, milk, nutmeg, and salt, stirring often until it reaches a light simmer, about 5 minutes
Temper eggs by adding a big spoonful of the hot milk mixture to the eggs, whisking constantly
Repeat until you've added about half of the milk mixture to the eggs
Pour the milk and egg mixture back into the saucepan, reduce to medium-low heat, and whisk constantly for about 3-5 minutes, until it thickens slightly and reaches a temperature of 160F on a candy thermometer
Remove the pan from the heat and whisk in the vanilla extract (and brandy if using)
Pour the eggnog mixture through a mesh strainer over a pitcher to remove any chunks
Cover and refrigerate for about 2 hours, until chilled through