175g/6oz caster sugar
6 lemons, juice and grated rind
1 lemon grass stalk, roughly flattened with a rolling pin
450ml/¾ pint soda water
Serves - 4
Place the sugar, lemon rind and juice, lemongrass stalk in a pan with 150ml/¼ pint water.
Heat gently, stirring until the sugar dissolves then simmer gently for five minutes then allow to cool.
Strain the liquid into a rigid container then stir in the soda water.
Transfer to the freezer for at least two hours, whisking every 20 minutes to stop crystals forming.
Serve in glasses.
Recipe adapted from: Good Food