Eggnog [and] 1/4 pint sherry." The recipe instructs cooks to "mix [the] liquor first, then separate yolks and whites of eggs, add sugar to beaten yolks, mix well. Add milk and cream, slowly beating. Beat whites of eggs until stiff and fold slowly into mixture. Let set in cool place for several days. Taste frequently." "Tom and Jerry is a form of hot eggnog [cocktail] that was once popular." The Tom and Jerry was invented by British journalist Pierce Egan in the 1820s, using brandy and rum added to eggnog and served hot, usually in a mug or a bowl. It
Eggnog Ready-made eggnog versions are seasonally available with different spirits, or without alcohol, to be drunk as bought or used as "mixes" with all the ingredients except the liquor, to be added as desired. While eggnog is mostly available from American Thanksgiving through to Christmas, in some regions a marshmallow-flavoured version is sold at Easter. In the 2000s, low-fat and sugar-free commercial versions are available using sugar substitutes and skimmed or low fat milk. The Dutch liqueur advocaat, with around 20% alcohol, and German Eierlikör, are essentially an eggnog, although the former only tends to have a similar consistency to eggnog