2cups(500ml) wateruse half the quantity for more concentrated syrup
For the lemonade
1 ¼cups(300ml) raspberry syrup
5fl oz(150ml) fresh lemon juiceabout 4 large lemons
1litrechilled soda water
Instructions
For the syrup: bring the frozen raspberries, sugar and water to the boil in a medium pot and simmer for 30 minutes until the syrup is slightly viscous.
Let the syrup cool, then strain into a suitable container. Chill completely before using. The cooked raspberries can be added to yogurt or porridge or used as cake filling.
Juice the lemons and strain the juice through a fine mesh to get rid of any pulp.
Combine the raspberry syrup and lemon juice in a large jug or drinks dispenser.
Dilute with chilled water or soda and add plenty of fresh ice to keep cool.