peel." Thus the recipe is six parts gin, two  parts vodka, and one part Lillet blanc, to be shaken (not stirred)  in a cocktail shaker with cracked ice, then poured into a chilled  cocktail glass, then garnished with a twist of lemon. The shaking is  important since the drink contains vodka. A traditional martini made  with gin alone should be stirred so as not to "bruise" the gin (get  air in it) nor to allow the vermouth to dissolve into the drink too  much; this leaves the drink smooth and doesnt mask the subtle  flavors of the gin and vermouth. A vodka martini has to be ice cold  (hence the shaking over the ice) and benefits from the blending of  the flavors.