SHAKE first 4 ingredients with ice and strain into ice-filled glass. TOP with soda and serve with straws.
Sweet and far from sophisticated, but better than the fodder peddled at most clubs.
Named after the Herbie Hancock track and popularised by a club night promoter called Cookie in Berlin during the mid-1990s. He started serving this cocktail at his club nights and now practically every bar in Berlin offers it. Try the original at his Cookie Club.