Take 300g Caster Sugar, 3 Lemons (Sliced), 250g of Raspberries
Place all the ingredients in a large saucepan and pour over 350ml cold water. Bring to the boil, stirring often, then leave to cool. Pour through a sieve, pressing down with a spoon to extract all the juices. The syrup can now be stored in the fridge for up to 1 week. To serve, pour a little into a glass and top up with sparkling or still water, ice and maybe some mint.