Peel and cut the potatoes into cubes. Boil them in a pot of water until tender. Mash them in a bowl with a fork. Season with salt and pepper. Set aside.

Place the flour in one bowl, the beaten egg in another, and the breadcrumbs mixed with Parmesan, salt, and pepper in a third bowl.

Cut the Reblochon into small cubes. Take a tablespoon of mashed potato, place a cube of Reblochon in the center, and form into a ball. Roll the ball in the flour, then in the beaten egg, and finally in the breadcrumb mixture. Repeat with the remaining ingredients.