The thyme in this cocktail gives is a subtle herbal quality that's difficult to put your finger on.

12 large organic mint leaves, plus 1 sprig for garnish
3 small sprigs organic thyme
1 tablespoon superfine (caster) sugar
2 ounces Square One vodka
1 ounce fresh-squeezed organic lemon juice
1 ounce mineral water

Muddle the fresh mint, thyme, and sugar in a cocktail shaker until the mint and thyme are very fragrant. Add ice, the vodka and the lemon juice and shake well. Strain into a double old-fashioned glass filled with crushed ice. Add the mineral water and the reserved sprig of mint and serve.