Step 1

In the bowl of a stand mixer, beat together the egg yolks and 1/3 cup sugar until the yolks lighten in color and the sugar is completely dissolved. Add the milk, cream, bourbon, rum, and nutmeg and stir to combine. Move mixture to a medium mixing bowl and set aside.

Step 2

Place the egg whites in the bowl of the stand mixer and beat to soft peaks. With the mixer still running, gradually add the remaining 1 tablespoon of sugar and beat until stiff peaks form. Gently fold the egg whites into the mixture. Chill and serve.