Original recipe yields 1 servings
Not exactly Bond's Vesper. The original recipe called for 100 proof Vodka and 94 proof Gin. Over the last 40 years distillers have, generally, lowered the proofs of their liquor. If you really want the taste, and kick, of the original, use Stoly 100 and Tanqueray Gin. Then as Matt noted in his review, use Lillet Blanc with a few drops of bitters.
The original recipe called for Kina Lillet which had Quinine in it. Since this is no longer available, use Lillet Blanc with a few drops of Angostura Bitters to simulate the bitter taste of Quinine.
Careful, this drink will knock you over! My fiance was out before the Bond Marathon even started!