1: Preheat the oven to 360°F (180°C). Prepare 6 slices bread (here I am using pieces of French baguette, but whatever bread you prefer will work just fine).
2: Spoon a little of the creamed leeks onto each slice, then arrange a few thinnish slivers of Camembert on top.
3: Bake for about 15 minutes, just until the Camembert has melted and has browned a little on the top. Serve piping hot.
Remarks
Feel free to use a different cheese instead of Camembert, of course, but preferably one with a soft paste. For a little more crunch, you can toast the bread before adding the topping.