- 175g caster sugar
- juice and grated rind 8 limes
- 2 lemon grass stalks, roughly flattened with a rolling pin
- 150ml vodka
- 300ml soda water
- Place the sugar, lime rind and juice and the lemongrass stalks in a pan with 150ml (Âź pint) water. Heat gently, stirring until the sugar dissolves then simmer gently for 5 minutes then allow to cool completely.
- Strain the liquid into a rigid container then stir in the vodka and soda water. Freeze for 2 hours until almost firm then using a fork, break the mixture into large flaky crystals.