Prepare the garlic cloves by peeling them, rinsing them quickly, and then crushing them with a garlic press. In a blender, combine the butter, parsley, crushed garlic, pepper, and ½ teaspoon of ground nutmeg.
Cut the baguettes in half lengthwise, then brush them generously with the butter-and-garlic mixture.
Wrap the baguettes in plastic wrap, then place them in the refrigerator for 2 hours (or 30 minutes in the freezer) to allow the butter to firm up.
Remove the plastic wrap, then slice the baguettes into pieces about 1 cm thick. Arrange the slices in a circle on a round platter.
Place the prefou in the oven and bake for about 10 minutes at 230 °C. Enjoy it piping hot right out of the oven.
