Start by cracking your cold eggs very carefully. Place the yellow yolks in a very large bowl. Put the clear whites into a clean mixing bowl. Make sure no yolk gets into the white part.

Add half of the sugar to the egg yolks. Use your small whisk to beat them together well. The mix should look pale yellow and very thick. This is the sweet foundation of your creamy drink.

Pour the whole milk and heavy cream in slowly. Stir gently to combine the liquids with the yolks. Add the vanilla extract and a pinch of salt. The base should look very rich and silky now.

Slowly pour in your favorite bourbon or dark rum. This helps preserve the eggs and adds deep flavor. If making a non-alcoholic version, skip this step now. Stir well to distribute the warm holiday spirit.

Grab your electric mixer for the egg white bowl. Beat them on high speed until they look foamy. Add the remaining sugar slowly while you keep mixing. Stop when you see very stiff and shiny peaks.

Gently spoon the whipped whites into the dairy bowl. Use a spatula to fold them in very lightly. You want to keep the air in the foam. The eggnog should look thick, white, and very frothy.

Pour the eggnog into small glass cups or mugs. Grate fresh nutmeg over the top of the foam. Serve it immediately while it is cold and fluffy. Enjoy the holiday cheer with your friends and family!