Shake with ice and strain
1/2 lemon (juice of) (1 1/2 oz, 4.5 cl, 3/8 gills)
1/4 grapefruit juice (3/4 oz, 2 cl, 3/16 gills)
1 egg white. (1/2 oz, 1.5 cl, 1/8 gills)
1 liqueur glass green Chartreuse. (3 cl, 1/4 gills)
Shake and strain into cocktail glass.
Serve in a cocktail glass (4.5 oz)
