Place the sugar and the water in a saucepan over a low heat and stir until the sugar has dissolved.

Gently simmer for 1-2 minutes, then remove from the heat. Stir in the chocolate until melted. Chill the mixture, then churn and freeze in an ice-cream maker, following the manufacturer’s instructions. Place in the freezer to firm up before serving.

If you don’t have an ice-cream maker, simply tip the mixture into a bowl and place in the freezer for 1-2 hours, or until it starts to freeze around the edges.

Remove from the freezer, stir well, then return to the freezer for a further 2 hours.

Remove, stir again and freeze for another 2 hours. Repeat this process once more. Finally, return to the freezer and leave until firm. Transfer to a sealable container for longer-term storage.

Serve the sorbet on its own or with fresh strawberries or raspberries and White Chocolate Sauce.