Scalloped Potato Gratin, featuring Sweet + Yukon Gold

Cheese and potatoes.  Like peanut butter and jelly, in my books.  My best friend and I joke that we fuel ourselves on these two ingredients, and nothing makes us happier than finding a dish that features both.  Add in the fact that both sweet and yukon gold potatoes are included, as well as the sweet, nutty, tangy addition of gruyere, and I am convince this is the reigning side dish in the land of food porn.

Feel free to play with the cheeses used here (substitute the gruyere for manchengo or a good white cheddar, for example) to better compliment your main dish.  Enjoy!

Scalloped Yukon Gold and Sweet Potato Gratin with Fresh Herbs Bon Appétit | November 2008

by Lora Zarubin

Yield: Makes 12 servings
1 1/2 pounds medium Yukon Gold potatoes
1 1/2 pounds medium red-skinned sweet potatoes (yams)
2 cups heavy whipping cream
1/4 cup (1/2 stick) butter
2 garlic cloves, minced
1 tablespoon minced fresh Italian parsley
1 tablespoon minced fresh rosemary
1 tablespoon minced fresh sage
1 tablespoon minced fresh thyme
1 1/2 teaspoons fine sea salt
3/4 teaspoon freshly ground black pepper
1 1/4 cups (packed) coarsely grated Gruyére cheese (about 5 ounces)


Fill large bowl with cold water. Working with 1 Yukon Gold potato at a time, peel, then cut into 1/8-inch-thick rounds and place in bowl with water. Repeat with sweet potatoes. Combine cream, butter, and garlic in medium saucepan; bring to simmer. Remove from heat. Mix all herbs in small bowl. Mix sea salt and black pepper in another small bowl.

Butter 13x9x2-inch glass baking dish. Drain potatoes, then pat dry with kitchen towels. Transfer half of potatoes to prepared baking dish. Use hands to distribute and spread evenly. Sprinkle with half of salt-pepper mixture, then half of herb mixture. Sprinkle with half of cheese. Repeat with remaining potatoes, salt-pepper mixture, herb mixture, and cheese. Pour cream mixture over gratin, pressing lightly to submerge potato mixture as much as possible. DO AHEAD: Can be made 6 hours ahead. Cover with plastic wrap and chill. Remove plastic wrap before baking.

Preheat oven to 400°F. Cover gratin tightly with foil. Bake 30 minutes. Uncover; bake until top of gratin is golden and most of liquid is absorbed, about 25 minutes longer. Let stand 10 minutes; serve.

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