Very simple with no cheese topping or onions, just potatoes, butter, and cream, with a bit of garlic. Optional - If you add cheese to this dish, it will become a Gratin Savoyard. The recipe originated in the Dauphine, a region of mountains, forests, and pasturelands that lies between the Savoy with its alpine lakes and snowy peaks, and Provence, home to sunshine and lavender. Serve with meat or poultry. Note: Make sure your baking dish is large enough to allow the cream to completely cover the potatoes. Adapted from Williams-Sonoma.