The Vesper as seen at Tony's Houston

This is the martini that James Bond makes famous in both the Ian Fleming's book and following movie, Casino Royale. When Bond orders it, he gives specific instructions, "Three measures of Gordon's (gin), one of vodka, half a measure of Kina Lillet. Shake it very well until it is ice cold, then add a large thin slice of lemon peel. Got it?"

Unfortunately for Bond, the Kina Lillet is no longer available so Lillet Blanc is now substituted. Interestingly, he calls the gin but not a specific vodka leaving that to the bartender. It can be made with your favorite gin and vodka and will still be fragrant and maintain its intended botanical character. 

Some cocktail aficionados also prefer to stir rather than shake this drink because of concerns that it will be overly diluted by the melting ice. Since it is a fairly robust drink, I agree with Bond, shake it as the movie's hero suggests, before straining into a martini or coupe glass. 

This version was made at Tony's in Houston. They use Roku gin, Haku vodka, and Lillet Blanc in their rendition. It is an ideal aperitif before a meal.