This dish looks so elegant on the table that no one will believe how easy it was to make. I often serve it at dinner parties with steaks or roasts.
Potatoes Au Gratin
Adapted from Simply Suppers by Jennifer Chandler
3 tablespoons unsalted butter, plus extra to grease the baking dish and the foil
1 1/2 cups milk
1 cup heavy cream
2 cloves garlic, minced
1/8 teaspoon freshly grated nutmeg
5 medium baking potatoes
Kosher salt and freshly ground black pepper
1 tablespoon French’s Dijon or Spicy Brown Mustard
1/4 cup grated Gruyere cheese
Preheat the oven to 375 degrees. Lightly grease a 9- x 13-inch baking dish with butter and set aside.
In a large saucepot combine the milk, cream, butter, garlic, and nutmeg. Peel the potatoes and cut into slices about 1/8-inch thick. Add the potato slices to the milk mixture to prevent discoloration.
Over medium-high heat, bring the milk mixture to a simmer and cook until the potatoes are slightly tender but still firm, about 5 minutes. Season with salt and pepper to taste. Using a slotted spoon, transfer the potatoes to the prepared baking dish, arranging the top layer of the potatoes in an overlapping pattern, if desired. Add the Dijon and mustard and stir to combine. Pour the milk mixture over the potatoes. Sprinkle the Gruyere cheese evenly over the top. Cover the dish with a buttered piece of aluminum foil, buttered side down.
Bake until the potatoes are fork tender, about 30 minutes. Remove the foil and bake until the potatoes are golden brown, about 20 minutes.
Serves 6 to 8.
Cooking Tip: The difference between freshly grated nutmeg and commercially ground is night and day. To grate whole nutmeg, use a special nutmeg grater or scrape the seed over the finest rasps of your box grater. I buy my whole nutmeg at the grocery in a specially designed jar with a grinder built into the lid.