In a small bowl, beat the egg yolks with ½ cup of the sugar until thickened.
In a separate larger bowl, mix the egg whites with ¼ cup of sugar and beat on high until peaks form, about 5 minutes.
In another separate bowl, beat the whipping cream on high until peaks form, about 5 minutes.
Gently stir the yolk mixture into the whipped cream. Then gently fold in the egg white mixture.
Gently stir in the milk, bourbon, vanilla, cinnamon, and ⅔ of the freshly ground nutmeg.
Pour into a serving bowl or punch bowl and chill in the refrigerator until ready to serve. To serve, top each glass with a small pinch of the remaining ground nutmeg.
Notes
Use high quality ingredients for the best flavor. Especially fresh eggs since they won't be cooked.
Choose a bourbon that you love the taste of. The flavor of the bourbon really comes through!
If you don't like bourbon, swap for your favorite rum or brandy.
To make it non-alcoholic, simply leave the bourbon out of the recipe. Still delicious!
When folding the whipped ingredients together, don't over mix them. Gently stir so that you have light and airy eggnog.