The espresso martini is the best cocktail template
Try making up your own cocktail. It's hard. Really hard. Cocktails are balanced chemical concoctions, delicious flavors and fun textures that result from a trick of various dancing ingredients, and usually, when you come up with a cocktail idea and try to make it — even if you’ve read great theory books — it is either too sweet or too nothing, too flat. The best way to come up with one, then, is to play on existing templates. It’s not difficult to make your own sour or spritz, but the best of the best, perhaps the most fun cocktail ever, is the espresso martini. And no cocktail is easier to play with. Many of today’s classic cocktails trace their heritage to the Prohibition Era, but the espresso martini comes from the swinging nightlife of 1980s London.