To make the Eggnog Latte:
Combine cold eggnog with cold whole milk. Cold non-fat milk can be substituted for the whole milk.
Using the steaming wand on your espresso machine, steam the eggnog/milk mixture until the temperature reaches 145F. Set aside.
*Eggnog heats and scalds more quickly than milk, so watch your thermometer.
Tamp ground espresso into the filter. Pull a shot of espresso and pour in serving mug.
Fill mug with steamed eggnog/milk mixture. Top with 1/4 inch foamed eggnog/milk mixture to the rim of the mug.
Garnish with a sprinkle of ground nutmeg.