Garnish: Cocktail Onions
Pour vodka or gin and the vermouth into a shaker with ice. Stir to chill the contents. Strain into a chilled martini glass.
Dry means less vermouth. Extra Dry means a lot less vermouth. The only difference between a Martini and a Gibson is the garnish. Martini comes with olives or a lemon twist while a Gibson comes with cocktail onions.