Which vermouth is traditionally used in a classic Manhattan cocktail?

Sweet vermouth is traditionally used in a classic Manhattan cocktail.

A Manhattan combines whiskey, sweet vermouth and bitters, usually stirred with ice and strained into a chilled cocktail glass. Rye whiskey is a common traditional choice, although bourbon is also widely used.

The drink is often garnished with a maraschino cherry. This garnish helps distinguish the Manhattan from a Martini, whose classic presentation more often uses an olive or lemon twist.

A common mix-up is assuming every Manhattan uses dry vermouth. A Dry Manhattan is a recognized variation that substitutes dry vermouth and commonly changes the garnish, but it is not the standard sweet version. The familiar formula is frequently described as two parts whiskey to one part sweet vermouth, with bitters added to taste.