Boil a small amount of water in your kettle.
Put the sugar into a jug with a splash of boiled water and stir until the sugar is dissolved.
Slice the strawberries length ways, cut one of the limes in half and squeeze the juice into the sugar water.
Cut the other lime into slices.
Add the gin and the tonic to the jug as well.
Give everything a good stir.
Pop a basil leaf in to each mould, along with some strawberry slices and a couple of lime slices.
Fill the moulds right to the brim and push a stick in each.
Freeze overnight.
Recipe courtesy of Gousto.
