A delicious lemony drink, this, and one we first had at the now defunct Rainbow Room bar on the 65th floor of the Rockefeller Centre in New York nearly 20 years ago. I shall never forget that experience - it was dark and very foggy, and we were sitting in front of a picture window, with all hopes of seeing the Empire State Building in front of us dashed - suddenly, the fog cleared, and there that wonderful building was, glittering in the dark sky. Wonderful! Anyway, we like to think that the now world-famous Dale de Groff might have mixed this, his own invention, for us that evening, as he was the head 'mixologist' there at the time. It consists of 1.5 parts gin, 1 part of gomme syrup, 3/4 part fresh lemon juice and several good shakes of Angostura Bitters. Shake together with ice and serve in an Old Fashioned glass over LOTS of ice and a slice of lemon. Delicious with blinis, creme fraiche and smoked salmon. A very nice alternative to G&T.