The Atlas cocktail — rum, apple brandy, Cointreau and bitters.
The Gin Derby Cocktail: Genever, brandy, sugar and mint. And there's a peach version, too...
The Crimson Slippers Cocktail taught me that rum and Campari are an astonishing, and nearly perfect, combination. Just make sure it doesn't get too sweet.
The Vermouth Trilby Cocktail: dry vermouth, Cointreau and bitters, with a whiskey float.
The Chrysanthemum Cocktail: dry vermouth, Bénédictine and absinthe. Gorgeously balanced and, with an orange twist, has a delightful nose.