Béarnaise sauce is a classic French sauce made from clarified butter, egg yolks, and flavored with herbs. It is similar to Hollandaise sauce but includes the addition of shallots, tarragon, and vinegar, giving it a distinct flavor profile. Typically served warm, it is often paired with grilled meats, particularly steak. The sauce is named after the Béarn region in southwestern France. To prepare it, the vinegar and shallots are reduced, then combined with egg yolks and butter to create a creamy texture. Its rich taste and aromatic herbs make it a popular choice in French cuisine.