1
Select and pre-chill a FLUTE GLASS.
2
RIM glass with charcoal powder (moisten outside edge with lime juice and dip into charcoal).
3
Prepare garnish of grapefruit zest twist.
4
SHAKE all ingredients with ice.
5
FINE STRAIN into chilled, rimmed glass.
6
EXPRESS grapefruit zest twist over cocktail and discard.