The most widely reported version of this drink’s origin is that it was invented at Caffe Casoni in Florence, Italy in 1919. Legend tells that Count Camillo Negroni asked his friend, bartender Forsco Scarselli, to strengthen his favourite cocktail – the Americano – by replacing the soda water with gin. Scarselli added an orange garnish, rather than the lemon you’d usually get with an Americano, and the drink took off. Before long, everyone was coming into the bar for a ‘Negroni.’
Otto’s Negroni is a slightly different recipe from the usual one.
In the mixing glass, put the ice and then add Otto's vermouth, Votanikon gin and Campari.
Fill the old fashioned glass with one large ice cube and then stir all the ingredients of the mixing glass.
Top up with soda and garnish with orange zest.