How to Make It
Heat milk in a Dutch oven over medium until just hot (do not boil), about 4 minutes. Remove from heat.
Beat eggs and salt with a stand mixer fitted with whisk attachment on medium-high speed until thick and pale, about 4 minutes. Gradually add sugar, and beat well, about 1 minute. Gradually stir about one-fourth of hot milk into egg mixture; gradually add egg mixture to remaining hot milk in Dutch oven, stirring constantly.
Reduce heat to medium-low, and cook, stirring constantly, until milk mixture thickens and an instant-read thermometer registers 160°F, 15 to 20 minutes. Stir in bourbon, vanilla, and nutmeg. Remove from heat, and cool 1 hour. Cover and chill at least 8 hours or up to 24 hours. Gradually stir in cream. Sprinkle individual servings with additional nutmeg.