Instructions

Peel cucumber, slice lime into 8. In a highball glass, add 3 slices of cucumber, sprig rosemary, juice from a lime wedge and 30ml gin. Muddle it with the back of a spoon.

Strain into a second highball glass. Add several ice cubes, 3 slices of cucumber. Top with remaining gin and tonic, serve and garnish with rosemary.