Eggnog (or egg nog) is a sweetened dairy-based beverage made with milk, cream, sugar, beaten eggs (which gives it a frothy texture), and flavoured with ground cinnamon and nutmeg; alcoholic versions also exist with the addition of various liquors, such as rum, brandy, whisky, & sake.
Eggnog is a popular drink in North America, Central America and South America and is usually associated with winter celebrations such as Christmas and New Year. Eggnog has long been believed to be an excellent source of magnesium. Eggnog is also very popular in Central Europe, but only its cognac version, that can be bought almost everywhere, mostly in Christmas-markets, during November and December. Commercially, non-alcoholic eggnog is available around Christmas time and during the winter.
The ingredients for the drink were too expensive and uncommon for the lower classes, but it was popular among the aristocracy. "You have to remember, the average Londoner rarely saw a glass of milk," says author and historian James Humes ("To Humes It May Concern", July 1997). "There was no refrigeration, and the farms belonged to the big estates. Those who could get milk and eggs to make eggnog mixed it with brandy or Madeira or even sherry."
The drink crossed the Atlantic to the English colonies during the 18th century. Since brandy and wine were heavily taxed, rum from the Triangular Trade with the Caribbean was a cost-effective substitute. The inexpensive liquor coupled with plentiful farm and dairy products helped the drink become very popular in America.
Eggnog can be produced from homemade recipes, however, ready-made eggnog containing alcohol and "just-add-alcohol" versions are available for purchase. Whiskey, rum, brandy, or cognac are often added. Since the 1960s, eggnog has often been served cold and without alcohol, both of which are significant departures from its historical origins. Lowfat eggnog is commercially available or it may be prepared in the home using skimmed or lowfat milk. In North America, a few soymilk manufacturers, including the popular brand Silk, offer seasonally-available, soy-based alternatives for vegans and those with dairy or milk allergies. Eggnog may be added as a flavouring to food or drinks such as coffee and tea. Eggnog-flavoured ice cream, for example, is a seasonal product in the US.