EGGNOG A beverage of eggs, milk, sugar and flavoring. Rich cream may take the place of part or all of the milk. Spirits are often added at holiday time. Eggnog may be served hot or cold, but it should be prepared as a stirred custard.
The name may come from the noggin or small cup in which it was served in earlier days. see Custard, Raw Eggs
See our Holiday Recipe for PA-RUMPA-PUM EGGNOG