Egg Nog Cocktail: Decadent Aged Recipe with Cooked Custard

Instructions:

1. Whisk Yolks and Sugar: In a large bowl, vigorously whisk the egg yolks and granulated sugar until the mixture is pale yellow, thick, and forms ribbons (ruban stage). Whisk in the pinch of salt.
2. Scald the Dairy: Combine the whole milk and the first 1 cup of heavy cream in a heavy-bottomed saucepan. Heat over medium-low heat until small bubbles form around the edges (approximately 180°F / 82°C). Do not boil. Remove from heat and stir in the vanilla extract.
3. Temper the Eggs: While continuously whisking the yolk mixture, slowly drizzle about 1/3 of the hot dairy mixture into the yolks. This raises the temperature of the eggs gently without scrambling them.
4. Return to Pan: Pour the tempered yolk mixture back into the saucepan with the remaining hot dairy.
5. Cook the Custard: Cook over low heat, stirring constantly, until the mixture thickens slightly (it should coat the back of a spoon—nappé consistency). The target safe temperature is 160°F (71°C). Do not exceed 170°F (77°C).
6. Strain and Cool: Immediately remove the custard from the heat and pour it through a fine-mesh sieve into a clean bowl to ensure ultimate smoothness. Allow it to cool at room temperature for about 30 minutes.
7. Add the Spirits: Once the mixture is cooled slightly, whisk in the aged dark rum, brandy/cognac, and bourbon/whiskey.
8. Chill and Age: Transfer the Egg Nog base to an airtight container. Refrigerate for a minimum of 4 hours, but ideally 24 to 48 hours. This resting period is crucial for the flavors to integrate.
9. Whip the Cream: Just before serving, whisk the remaining 1 cup of very cold heavy cream until soft peaks form.
10. Fold and Serve: Gently fold the whipped cream into the aged Egg Nog base to add lightness and volume.
11. Garnish: Serve chilled in small glasses. Grate a generous dusting of fresh nutmeg over the surface of each cocktail immediately before serving.