Take your eggnog, orange juice, and milk, and combine all 3 in a large pitcher. Stir all of these together until they’re thoroughly blended.
Put this mixture in the refrigerator for several hours to give all the flavors time to combine.
When you’re ready to serve the eggnog, pour it into small glasses. This is also beautiful in small clear glass cups so you can see the golden color of the orange eggnog.
Now you need to zest your orange.
Sprinkle each cup of your orange eggnog with orange zest, ground nutmeg, and then either ground cinnamon or add a cinnamon stick for extra flair.