Lime and Ginger Syrup

• 2 limes, zest finely grated using a microplane
• 100 g (3½ oz) freshly squeezed lime juice<

Mix the lime zest, lime juice, ginger and sugar syrup together in a bowl and leave to marinate for 24 hours. Strain the mixture through a chinois and squeeze the ginger and lime to extract all the juice.

Pour 50 ml (1⅔