Sage-Flavored Gratin Dauphinois with Potato, Sweet Potato and Pink Turnips

Sage-Flavored Gratin Dauphinois with Potato, Sweet Potato and Pink Turnips
Serves 4 to 6 people

Ingredients

• 2 garlic cloves, peeled and halved
• unsalted butter, for the baking dish
• 1 cup (240 ml) whole milk
• 1 cup (240 ml) heavy cream
• 1 twig of thyme
• 1 lb and 9 oz (700 g) Yukon gold potatoes, peeled and sliced finely with a mandolin
• 1 large sweet potato, peeled and sliced finely with a mandolin
• 5 small pink turnips, peeled and sliced finely with a mandolin
• 6 sage leaves, chopped finely
• sea salt and pepper
• pinch of nutmeg
• 1 oz finely grated Comté cheese

Instructions
1. Rub a 12 x 8.5-inch baking dish with two halves of one garlic clove. Butter the dish generously. Slice the halves of garlic and place them at the bottom of the dish. Set aside.
2. Preheat the oven to 400 F.
3. In a pot, heat the milk and heavy cream with the remaining garlic halves and the thyme. Bring to a simmer and then stop the heat. Cover and let infuse for 30 minutes. Strain, discarding the garlic and thyme, and reheat.
4. Tightly arrange the slices of vegetables at the bottom of the dish, alternating between one layer of potato slices, one layer of sweet potatoes and one layer of turnips. Repeat until you run out of ingredients.
5. Add the sage and then pour the milk/cream batter over the vegetables — the milk should cover the vegetables. Season with salt and pepper and sprinkle with the nutmeg. Top with the grated cheese.
6. Bake the gratin for 50 minutes to 1 hour, or until the top has a nice golden color. Serve warm as a side dish.


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