The Ultimate Eggnog Punch

Place the egg yolks in the bowl of a stand mixer fitted with a whisk attachment. Beat on medium-high speed until thick and lemon-colored, about 4 minutes.Reduce the speed to medium low, slowly add the sugar, and beat until the mixture is thick and creamy, about 5 minutes. Slowly pour in the bourbon and beat until incorporated. Slowly pour in the milk, cream, and vanilla and continue beating until incorporated, about 3 minutes. (Lower the speed as necessary to keep the liquid from splashing.)

Transfer the mixture to a 4-quart serving container and set aside.Clean and dry the mixer bowl and whisk attachment.

Place the egg whites in the clean, dry bowl and beat on medium-high speed with the clean whisk attachment until medium-stiff peaks form, about 2 minutes. Stir the egg whites into the egg yolk mixture until they are completely incorporated and the eggnog is pale yellow and frothy.To serve, fill cups with ice, ladle the punch over the ice, and garnish with a pinch of nutmeg.