Fill a shaker with ice cubes. Add all ingredients. Shake and strain into a chilled cocktail glass. Garnish with lemon.
Legend has it that the Sidecar was invented by an American captain during World War I. He named it after his motorcycle sidecar into which he slung himself after indulging himself with a few too many so a friend could zoom him home. True? Who knows. What we do know is that the first written recipe is from 1922. We trade the cognac in that for ABSOLUT.