Béarnaise is a classic French sauce made from clarified butter, egg yolks, and white wine vinegar, flavored with shallots, tarragon, and chervil. It is a derivative of the Hollandaise sauce and is known for its rich, creamy texture and tangy taste. Typically served warm, it complements grilled meats, particularly steak. Originating from the Béarn region in southwestern France, Béarnaise sauce is often used in French cuisine to enhance the flavor of dishes. Its unique combination of herbs and acidity makes it a popular choice for chefs and home cooks alike, adding depth to various meals.