Ingredients
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1 1/4 cups heavy cream
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1 1/4 cups whole milk
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8 ounces unsalted butter, plus melted butter for brushing
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Two 4-inch rosemary sprigs
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2 sage sprigs
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2 garlic cloves, crushed
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5 pounds baking potatoes, peeled and cut into 2-inch pieces
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Kosher salt
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Pepper
Directions
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In a medium saucepan, combine the cream, milk and the 2 sticks of butter with the rosemary, sage and garlic and bring just to a simmer. Remove from the heat and let steep for 15 minutes, then discard the rosemary, sage and garlic.
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Meanwhile, in a large pot, cover the potatoes with water and bring to a boil. Add a generous pinch of salt and simmer over moderate heat until tender, about 20 minutes. Drain well, then pass the potatoes through a ricer into the pot. Fold in the cream mixture and season generously with salt and pepper.
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Light the broiler and position the rack 8 inches from the heat. Scrape the potatoes into a 12-inch round flameproof pan or baking dish (2 inches deep) and, using a spoon, decoratively swirl the top. Gently brush with melted butter. Broil for about 8 minutes, until the top is browned in spots. Serve hot.
Con Poulos
Make Ahead
The mashed potatoes can be prepared through Step 2 and refrigerated overnight. Reheat gently before scraping into the baking dish and broiling.