Start by whisking the eggs, egg yolks, sugar and salt in a large pan until well blended. Keep on whisking while you slowly pour in the milk until it is completely mixed in.

Set the pan on your stove's burner and turn on the lowest setting. Continuously whisk ingredients for 25-30 minutes or until the mixture reaches 160°F and will coat the underside if a spoon.

Remove grin heart and strain into a large sized bowl, making sure to get any cooked egg pieces out. Stir in the bourbon, vanilla and nutmeg. Transfer to a covered dish. Refrigerate for at least 4 hours before proceeding.

Finally, when you're ready to serve, pour in the heavy cream and whip it well. Now just fold it into the chilled mix, pour, serve, and enjoy!