| Preparation | Cooking | Start to finish | 
|---|---|---|
| 30 min. | 45 min. | 1 hour 15 min. | 
| 1 | Peel, rinse and dry 1 kg    potatoes. slice fairly thickly (a mandolin is ideal for this).  | ![]()  | 
| 2 | Put in a large saucepan, add 1  bouquet garni and 1 litre    whole milk, salt and pepper. Bring to a gentle boil and cook until the potatoes are tender.  | ![]()  | 
| 3 | Preheat the oven to 390°F (200°C). Drain the potatoes. Keep the milk from cooking them to use later in another recipe (bechamel sauce or soup, for example).  | ![]()  | 
| 4 | Butter a gratin dish and spread half the potatoes evenly in it. | ![]()  | 
| 5 | Add 250 g cooked Morteau sausage, cut into small dice or sliced. | ![]()  | 
| 6 | Add the rest of the potatoes on top and pour 200 g cream over. | ![]()  | 
| 7 | Top with 200 g Morbier, cut into thin slices. | ![]()  | 
| 8 | Bake for about 25-30 minutes (watch for browning towards the end). | ![]()  | 
