The Manhattan cocktail is made by stirring together rye or Canadian whiskey with sweet red vermouth and a dash of bitters. The drink is usually finished with a cocktail cherry and is traditionally served in a cocktail glass.
The Old Fashioned cocktail is made by muddling sugar with bitters, then Bourbon or rye whiskey. The drink is usually finished with a twist of citrus rind and a cocktail cherry. It is traditionally served in an Old Fashioned glass, which is named after this very drink.