A Tom and Jerry is a traditional Christmas-time cocktail in the United States, sometimes attributed to British writer and professional boxing journalist Pierce Egan[1] in the 1820s.

Pre-made Tom and Jerry batter, typically produced by manufacturers in Wisconsin, Minnesota, the Dakotas, and Montana, is sold in regional supermarkets during the Christmas season.

To publicize the book and the play, Egan introduced a variation of eggnog by adding 1⁄2 US fluid ounce (15 ml) of brandy,[dubious – discuss] calling it a "Tom and Jerry".

[5][unreliable source] Tom and Jerry was a favorite of President Warren G. Harding, who served it at an annual Christmas party for his closest friends.

[6] Two later cartoon duos, a short-lived Tom and Jerry from Van Beuren Studios in the 1930s, and the famous cat and mouse rivalry from the 1940s through the 1960s, also bore the name, possibly as a play on words with the drink or the literary works that inspired it.