What is Eggnog

Eggnog is a popular drink throughout The Americas, 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, which 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.

Eggnog may have originated in England, It is believed to have
been developed from a medieval beverage made with hot milk, called
posset. The Nog in Eggnog comes from the word noggin, a phrase to
describe a small, wooden mug used to serve alcohol. While the Egg
comes from an English drink called Egg Flip. It was shortened and/or
slurred into egg'n'grog, then eggnog.