When winter descends on Detroit, those in the know don their heavy coats and make their way to The Oakland Art Novelty Company, where the classic Tom & Jerry is proffered at the first sign of snow. \u201cThe Tom & Jerry has become an integral part of our winter seasons,\u201d says Sandy Levine, the bar\u2019s owner. Made using a rum-spiked, egg-based batter, the steaming drink emerged as a cold-weather staple in New England around 1820. Here's how they make the Tom & Jerry batter at the bar. And head here\u00a0for Levine's house version of the Tom & Jerry cocktail.