The Mint Julep – official drink of the Kentucky Derby
A necessarily limited category defined by a heavy emphasis on fresh mint, sugar and the base spirit in the presence of a lot of ice, and a relative scarcity of other modifying ingredients.
Obvious examples are the Mint Julep, the Champagne Julep and the Whiskey Smash, and depending on how hard you want to argue about it, the Mojito (which could also fit into the loosely defined highball category).
Juleps and Smashes