The Tom Collins is perhaps the ultimate highball and one of history’s most enduring cocktails. It was historically made with Old Tom gin, which is sweeter than London dry gin, but the drink works well with both types of the spirit. (Old Tom only recently became available again, thanks to the clamoring of mixologists.) A peculiar methodology is used in mixing up a Tom Collins. Though it contains fresh juice, which usually dictates that the drink must be shaken, it is nonetheless often built in the glass in which it is served. But shaking the drink and then straining it into an ice-filled highball works as well, and arguably leads to a better integrated cocktail.