Based on the original Aviation recipe, but with reduced gin and
increased lemon and maraschino, to balance the cocktail a little
bit away from the sometimes overpowering sourness of the original,
which calls for 2 oz. gin. The creme de violette is genuinely
important, and gives the cocktail its eye-catching color.
Combine in a shaker half-filled with ice. Shake intensely for
10-15 seconds, serve up in a coupe or martini glass, decorated
with a lemon peel (preferably flamed).