Potato Gratin with Gruyere and Herbes de Provence

Preheat oven to 350 degrees F. Butter 13x9-inch baking dish. Heat oil in heavy large saucepan over medium heat. Add shallots and sauté until tender, about 10 minutes. Add garlic and sauté 1 minute. Add broth, wine and herbs; bring to simmer. Add cream, salt and pepper; remove from heat.

Grate potatoes through stand mixer shredder attachment according to manufacturer's instructions (there should be about 7 cups). Add potatoes directly to cream mixture to avoid discoloration. Heat until mixture simmers, about 12 minutes. Meanwhile, grate cheese through stand mixer shredder attachment according to manufacturer's instructions.

Spoon half of potato mixture into prepared dish. Sprinkle with half of cheese. Spoon remaining potato mixture atop cheese, spreading evenly. Sprinkle remaining cheese over.

Bake until top browns, liquid bubbles and potatoes are tender, about 1 hour and 15 minutes. Cool 15 minutes and serve.