Mont d'or in brioche

For this delicious winter Comtoise recipe, we enclose a layer of grilled onions, diced Morteau sausage, sautéed potatoes and a Mont d'or in a brioche pastry.

The whole thing, rather like a large pie, is baked in the oven, before being slit open to enjoy the melted Mont d'or that has deliciously dripped onto the layers below.