Leaving the peel on, cut the fruits into 1cm rounds.
Bring the sugar and water to the boil in a large pot, stirring occasionally until the sugar dissolves. Add the fruit slices to the boiling syrup, then reduce the heat. Gently simmer for about 1 hour, until the slices are soft and glazed.
Using a slotted spoon, transfer the slices to a wire rack set on a rimmed baking sheet. Let the fruit dry overnight or for at least 6 hours.
Once dry, decorate the slices with melted chocolate and leave to set.