A posset was originally a popular British hot drink made of milk curdled with wine or ale, often spiced, which was often used as a remedy.
A glass of the modern lemon posset dessert, served with almond bread
Posset pot, Netherlands, Late 17th or early 18th century, Tin-glazed earthenware painted in blue V&A Museum no. 3841-1901 Victoria and Albert Museum, London
A 1661 posset pot from England.
Eggnog, historically also known as a milk punch or an egg milk punch when alcoholic beverages are added, is a rich, chilled, sweetened, dairy-based beverage. It is traditionally made with milk, cream, sugar, egg yolks, and whipped egg whites. A distilled spirit such as brandy, rum, whiskey or bourbon is often a key ingredient.
Eggnog with cinnamon
A woman serves commercially prepared eggnog to U.S. military personnel at a Christmas meal.
A carton and a glass of eggnog from Montréal, Québec, showing its French façade and the French term lait de poule (literally, "hen's milk")
A 1661 posset pot from England