Granita is a traditional semi-frozen Italian dessert that is super-simple to make. The classic coarse texture of granita is achieved by scraping it with a fork. This recipe takes advantage of the refreshing flavour of rockmelon but you can make granita using any fresh fruit. For the maximum rockmelon flavour choose a ripe rockmelon that smells sweet and gives slightly when pressed at the stem end. If your rockmelon isn’t ripe enough put it in a paper bag and leave in a sunny spot for 2 to 3 days to speed up the ripening process. For an added rockmelon hit, place pieces of rockmelon in the bottom of your serving glasses before adding the granita.