Hollandaise sauce is a classic French sauce made with egg yolks, butter, and lemon juice. It is rich, creamy, and tangy, making it the perfect accompaniment to eggs Benedict, asparagus, or grilled fish. This recipe provides the basic hollandaise sauce recipe, as well as four variations: tarragon hollandaise, Dijon hollandaise, chipotle hollandaise, and truffle hollandaise. Each variation adds a unique twist to the classic sauce, allowing you to customize it to your taste.