Now it’s time to assemble the gratin. In a greased baking dish, layer half of the cooked potatoes, followed by half of the sliced Morteau sausage. Repeat the layers with the remaining potatoes and sausage, then pour the cancoillotte over the top.
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Cover the dish with aluminum foil and bake it in the preheated oven for 25 minutes.
After 25 minutes, remove the foil and continue baking the gratin for an additional 10-15 minutes, or until the top is golden and bubbly.
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Once the gratin is finished baking, remove it from the oven and let it cool for a few minutes before serving.
Now, sit back and enjoy the delicious flavors of this Gratin franc-comtois à la Morteau. Bon appétit!
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