Hugo is a refreshing Italian cocktail that combines elderflower syrup (or elderflower liqueur), Prosecco, and a spritz of seltzer or sparkling water. The original version was made with lemon balm syrup, but since elderflower syrup is more available, it became the prevalent option.
The drink is made by adding all the ingredients in a glass filled with ice. It is mostly served in a red wine glass and usually comes garnished with mint and sometimes with lemon or lime wheel. The cocktail was invented in 2005 by Roland Gruber, a bartender who was working in Vinschgau, South Tyrol.