The Americano is based on theĀ old 19th-century Italian cocktail the Milano-Torino, which hasĀ Campari and Martini Sweet Vermouth. The story goes that when American came over to Italy during Prohibition, they liked to temper the drink with Soda Water and the locals nicknamed this new drink the Americano.
Stir Campari and Vermouth in a cocktail glass filled with ice, then strain into a highball glass filled with ice and top with Soda
Orange twist