Black truffle oil is a culinary oil infused with the flavor of black truffles, a type of fungus known for its rich, earthy taste. Typically made by combining a neutral oil, like olive oil, with either real black truffles or synthetic flavoring, it adds a luxurious touch to various dishes. This oil is often used as a finishing touch for pasta, risottos, and salads, enhancing their flavor without the need for extensive cooking. While it provides a unique taste, it's important to use it sparingly, as its strong flavor can easily overpower other ingredients.