Bordelaise sauce is a classic French sauce made from red wine, shallots, and bone marrow, often enriched with butter. It is typically flavored with herbs like thyme and bay leaf, giving it a rich and savory taste. This sauce is commonly served with beef dishes, enhancing the meat's flavor and providing a luxurious touch. The sauce originates from the Bordeaux region of France, known for its fine wines. Traditionally, Bordelaise sauce is used in gourmet cooking and is a staple in French cuisine, showcasing the art of sauce-making that is central to many French dishes.