In a medium mixing bowl whisk the egg yolks from 3 large eggs, 1/2 cup granulated sugar, and pinch of kosher salt together until light in color and smooth.
In a large saucepan heat the 2 cups whole milk, 1 cup heavy whipping cream, and 1 vanilla bean over medium heat, stirring frequently, until it starts to bubble around the edges. You want to scaled the milk but not boil it.
Use a ladle to slowly pour some of the scalded milk mixture into the egg yolk mixture, whisking continuously as you pour. Continue with a second ladle of the hot milk mixture.
Pour the warmed egg yolk mixture back into the saucepan with the remaining warm milk. Heat, over medium low heat, until the mixture reaches 160℉, about 5 to 7 minutes, stirring continuously. If you don't have a thermometer, this temperature is hot but you can still touch it without getting burned. Remove the saucepan from the heat and let cool. Add the freshly grated 1/2 teaspoon nutmeg.
In the bowl of an electric mixer fitted with the whisk attachment or using a handheld mixer, beat the remaining 2 tablespoons granulated sugar and the egg whites until a ribbon-like texture begins to form. Do not allow the mixture to become stiff and forms peaks.
Gently pour the egg whites into the saucepan and fold into the mixture.
Place the eggnog in the refrigerator to chill and thicken for at least a couple of hours. Prior to serving, remove vanilla bean and scrape out as many of the seeds as possible. Stir or shake well before serving. I prefer to store in a mason jar with a lid so I can easily shake.
Notes
Recipe yields 4 cups.Note: this recipe uses raw egg. Please ensure that you use very fresh clean eggs and/or pasteurized eggs when making this recipe.