INGREDIENTS
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1 1⁄2 cup heavy cream
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2 sprig fresh thyme, plus more to finish
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2 garlic cloves, chopped
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1⁄2 tsp ground nutmeg, freshly grated
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1 unsalted butter
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2 lb russet potatoes, peeled and cut into 1/8-inch thick slices
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1 salt
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1⁄2 cup parmesan cheese, grated, plus more for broiling
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1 black pepper, freshly ground