Remove the camembert from its plastic wrapping and put it back in the wooden box. Of course, this won't work if you buy camembert in paper packaging. In this case, you can place the cheese in an ovenproof dish.
Cut the top crosswise and fold it open a little. Add a sprig of rosemary and place in the preheated oven for 15-20 minutes.
Serve with a drizzle of honey and a nice baguette.
Notes
If you cannot find camembert you can do the same with brie cheese
I recommend using a small round casserole that fits the cheese or if the cheese comes in a wooden box you can use that.
Make sure to remove all paper and plastic from the cheese!
You can also stick a couple of garlic cloves in the opening of the cheese. That will add a lovely garlic flavor.