Preheat the oven to 400° F. Place the cheese in a small baking dish with a lid (the more snugly the cheese fits, the better it will hold together). Top with the rosemary leaves and the honey, cover, and place in the oven. Cook for about 12 to 13 minutes, by which time the cheese will have started to melt and become deliciously runny. Remove from the oven carefully, as the honey will be bubbling and very hot.
Leave to cool for a couple of minutes, then serve with plenty of crusty bread for smearing and dunking.