Fried onions are thinly sliced onions that are cooked in oil or butter until they become golden brown and crispy. They are often used as a flavorful topping for various dishes, adding a crunchy texture and a rich, savory taste. Fried onions can be made at home or purchased pre-packaged, commonly found in grocery stores. These crispy treats are popular in many cuisines around the world. In American cooking, they are frequently used as a garnish for casseroles, burgers, and salads. In Indian cuisine, fried onions are a key ingredient in dishes like biryani and curries, enhancing the overall flavor profile.