A doughnut or donut is a popular dessert and breakfast food in North America and around the world and prepared in various forms.The two most common types are the toroidal ring donuts and the filled donuts.The classic doughnut has a hole in its center to allow for more even cooking, and is coated in a sweet sugar or honey-based glaze. Filled doughnuts generally do not have a hole in the middle. Doughnuts now come in dozens of varieties, including jelly or cream-filled, and may be topped with various icings, glazes and sprinkles. Prepare these round, golden brown, ring donuts at home with this easy recipe.