GRATIN DAUPHINOIS
INGREDIENTS
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1 1/2 kg (roughly 5 large) potatoes (Yukon Gold are best, though you could use sweet potatoes, celery root or parsnips)
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1 3/4 cups whipping cream
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2 tbsp kosher salt
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1 clove garlic, crushed
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2 sprigs fresh thyme
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1 tsp black peppercorns, whole
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1 cup Gruyère, grated
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