Wikipedia Article About Dry vermouth on Wikipedia Dry white vermouth, along with gin or vodka, is a key ingredient in the mixing of martinis, in proportions that may account for the lackluster sales of dry white vermouths. Sweet red vermouth is combined with whiskey and a Maraschino cherry to create a "Manhattan cocktail." A sweet white vermouth is also made. Italian dry vermouth is type of vermouth produced in Italy. It is usually a bit sweeter than the French vermouth.