Potato gratin is a classic French dish made primarily from thinly sliced potatoes layered with cream, cheese, and sometimes other ingredients like garlic or onions. The dish is baked until the potatoes are tender and the top is golden and crispy. It is often served as a side dish, complementing meats or vegetables. The creamy texture and rich flavor of potato gratin make it a popular comfort food. Variations exist, including the addition of gruyère cheese or herbs, which enhance its taste. This dish is enjoyed in many cultures and is known for its satisfying and hearty qualities.