Donuts are sweet, fried pastries that come in various shapes, most commonly in a ring shape or as filled rounds. They are typically made from a dough that includes flour, sugar, eggs, and milk, which is then leavened with yeast or baking powder. After frying, donuts can be glazed, sprinkled with sugar, or topped with icing, and they often come in a wide range of flavors and fillings, such as cream, jelly, or custard. They are a popular treat for breakfast or as a snack, often enjoyed with coffee.