In a large mixing bowl, beat egg yolks with ¼ cup sugar until the mixture is light and fluffy.
Stir in the milk, heavy cream, pumpkin purée and spiced rum.
In another bowl, whip the egg whites with the remaining ¼ cup sugar until soft peaks form.
Gently fold in the pumpkin and egg mixture to the egg whites. Mix until smooth.
Serve immediately or refrigerate until ready to serve.
Serve in a punch bowl and ladle it into eight rocks glasses.
Garnish each glass with whipped cream, freshly grated nutmeg and a cinnamon stick.
Notes
Food safety warning: Consuming raw or undercooked meats, poultry, seafood, shellfish, or eggs may increase your risk of foodborne illnessHere are some tips and tricks for making this recipe:
Use new eggs at room temperature. Old eggs and cold eggs will not whip as easily.
Make sure the bowl you use for whipping egg whites is clean and dry.
Eggnog is usually served chilled or at room temperature, but it can be enjoyed warmed. To warm it, heat it on low heat on the stove.