Potato Gratin is a classic French dish made primarily from thinly sliced potatoes, cream, and cheese. The potatoes are layered in a baking dish, often seasoned with garlic, salt, and pepper. The dish is then baked until the potatoes are tender and the top is golden and crispy. This comforting side dish is known for its rich, creamy texture and savory flavor. Variations may include the addition of ingredients like onions, herbs, or different types of cheese, such as Gruyère or Parmesan. Potato gratin is often served alongside meats or as part of a festive meal.