There's no cocktail more classic than a gin martini. But even a perfect drink—usually made with gin, dry vermouth, and lemon—can get boring. First master the original and then switch up your martini game with any of these riffs on the classic.
Originally called omelette à la neige (snow omelet) in reference to the fluffy snow-like appearance of the meringue, île flottante (floating island) has a lengthy history that dates back to the 17th century.