'Gosh, that's certainly a drink,' said Leiter. Got it?' 'Certainly, monsieur.' The barman seemed pleased with the idea. Shake it very well until it's ice-cold, then add a large thin slice of lemon peel. 'Three measures of Gordon's, one of vodka, half a measure of Kina Lillet. Above: 'Casino Royale' introduced the classic Vesper vodka martini