The sour notes of a classic Collins take very well to the addition of a little herbal fragrance. Serves one.
40ml blanco tequila
25ml fresh lemon juice, plus 1 lemon wheel to garnish
20ml sugar syrup
1 sprig rosemary, plus 1 extra to garnish
Soda water, to top
Put the tequila, lemon juice, syrup and rosemary in a shaker, shake hard, then strain into a highball glass over cubed ice. Top with soda, garnish and serve.
• Giles Looker, soulshakers.co.uk