In a saucepan, bring 250 ml (1 cup) of water and the sugar to boil, stirring until the sugar has dissolved. Pour into a pitcher. Add the water, lemon juice, rum, lychee and syrup. Refrigerate for 4 hours or overnight.
2-in-1 Citrus Juicer
This enamelled cast-iron citrus juicer has two concave domes: one for limes and one for lemons. Designed to extract the maximum of juice without pulp or seeds.