Twists: variations on the classics

A twist is a classic with one piece swapped out. Not an invention from scratch, and not a whim: you replace one ingredient, you keep the structure, and the resulting drink explains itself to anyone who knows the original. A Boulevardier is a Negroni with bourbon instead of gin. A Penicillin is a Whiskey Sour with honey, ginger and a float of smoky Scotch.

That is why a twist teaches more than an isolated recipe: change a single piece and you can taste exactly what that piece was doing. These are the classics in the recipe book that have variations, each one shown beside its own.