Potatoes Au Gratin
["1 to 1 1/4 lb. peeled potatoes", "3 Tbsp. unsalted butter", "salt", "freshly ground pepper", "freshly grated nutmeg", "2 oz. Gruyere cheese, grated", "1 to 1 1/4 c. heavy cream"]
["Preheat oven to 300\u00b0.", "Cut potatoes into 1/8-inch thick slices and soak in cold water.", "Drain and dry the potatoes on paper towels.", "Use 1 tablespoon butter to grease a shallow 2-quart baking dish.", "Spread half the potatoes in the bottom of the dish. Season to taste with salt, pepper and nutmeg.", "Sprinkle with half the cheese.", "Dot with 1 tablespoon butter, cut into small pieces. Arrange remaining potato slices on top.", "Sprinkle with seasonings and remaining cheese.", "Pour cream over surface and dot with remaining 1 tablespoon butter.", "Bake until potatoes are creamy and top is golden brown, about 1 to 1 1/2 hours.", "Serves 4."]
["potatoes", "unsalted butter", "salt", "freshly ground pepper", "nutmeg", "Gruyere cheese", "heavy cream"]