A doughnut or donut (pronounced /ˈdoʊnət, ˈdoʊnʌt/) is a type of fried dough food popular in many countries and prepared in various forms as a sweet (or occasionally savory) snack that can be homemade or purchased in bakeries, supermarkets, food stalls, and franchised specialty outlets. They are usually sweet, deep-fried from a flour dough, and shaped in rings or flattened spheres that sometimes contain fillings. Other types of dough such as potato can also be used as well as other batters, and various toppings and flavorings are used for different types.