These popular snack fruits are outstanding sources of vitamin C; they also supply folate and fibre as well as flavonoids, which are cancer-fighting compounds.
Cut the rind off the oranges and cut the oranges into skinless segments, making sure all the pith has been removed.
Place in a gratin dish or a shallow baking dish and sprinkle with the brown sugar and cinnamon. Top with the orange zest. Grill for 2 minutes or until the sugar melts.