Lightly MUDDLE (just to bruise) basil in base of shaker. Add other ingredients apart from tonic, SHAKE with ice and strain into ice-filled glass. TOP with tonic water and serve with straws.
Lemon zest twist
A nuclear gin and tonic - or at least, one that simply radiates flavour.
Created in 2007 by Brendan Mainini at The Ambassador Bar, San Francisco, USA.