"A set-it-and-forget-it version of the favorite side dish...."
INGREDIENTS
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5 lbs Yukon Gold potatoes, peeled and sliced 1/8-inch thick
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3 cups heavy cream
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5 cloves garlic, minced
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1 teaspoon dried thyme
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Pinch of nutmeg
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2 cups Gruyere cheese, grated
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1/2 cup Parmesan cheese, grated
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Kosher salt and freshly ground black pepper, to taste