Old Fashioned Egg Nog
["1 doz. eggs", "2 c. sugar", "2 pt. heavy cream*", "1 pt. half and half*", "1 qt. milk", "2 Tbsp. vanilla flavoring", "rum to taste (white; optional)"]
["*Can add vanilla ice cream (1/2 gallon) in place of heavy cream and half and half."]
["eggs", "sugar", "heavy cream", "*", "milk", "vanilla flavoring", "rum"]