500ml| 2 cups wateruse half the quantity for more concentrated syrup
For the lemonade
300ml| 10fl oz raspberry syrup
150ml| 5fl oz 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 yoghurt 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.