1. In a medium-sized pot, add the sugar, water, raspberries and lemon juice and heat until the sugar is dissolved and the raspberries are soft.

2. Remove from the heat and allow to cool. Add the tonic water and mix. Strain this mixture and pour into ice-pop moulds with a stick and freeze over night.

Tip: To cut down on the sugar, you can use soda water instead of tonic water.