Martha Stewart's Famous Eggnog Recipe

Ingredients

• 12 large eggs, yolks and whites separated
• 1½ cups plus 3 tablespoons superfine sugar, divided
• 1 quart whole milk
• 1½ quarts heavy cream, divided
• 3 cups bourbon, such as Maker's Mark
• 1/2 cup dark rum, such as Mount Gay
• 2 cups cognac, such as Rémy Martin Grand Cru
• 1 teaspoon vanilla extract
• freshly grated nutmeg