Pommes Lyonnaises is a classic French dish made from potatoes that are sliced into rounds and sautéed in butter. Originating from the city of Lyon, these potatoes are typically cooked until they are golden brown and crispy on the outside while remaining tender on the inside. The dish is often seasoned with onions, which are cooked alongside the potatoes to enhance the flavor. Pommes Lyonnaises can be served as a side dish to complement various main courses, making them a popular choice in French cuisine.