CHEESY AU GRATIN POTATOES

Steps:

• You do not need to grease the baking dish. You will need a 2- to 3-quart gratin dish.
• Combine cheeses: Adjust oven rack to middle position and heat oven to 350 degrees. Toss cheese and cornstarch in large bowl until evenly coated.
• Assemble gratin: Shingle half of potatoes in large gratin dish, sprinkle evenly with 1 cup cheese mixture, 3/4 teaspoon salt, and 1/4 teaspoon pepper. Top with remaining potatoes, additional 3/4 teaspoon salt, and additional 1/4 teaspoon pepper.
• Bake: Combine cream and broth in large measuring cup and pour over potatoes. Top with remaining cheese mixture and bake until golden brown and fork inserted into center meets little resistance, 75-90 minutes. Let cool 10 minutes. Serve.