The name stands for Absinthe, Bourbon, and Cointreau.
In a wide-mouthed wine goblet mix:
2 parts Absinthia Absinthe Superieure
2 parts Bourbon whiskey
2 parts Cointreau
3-4 ice cubes
Shake and enjoy! As the ice cubes melt in the drink, this dilutes the absinthe and simultaneously chills the bourbon.