A cake donut is a type of donut made from cake batter and leavened with baking powder and/or baking soda. The batter is typically made with a mixture of butter, sugar, eggs, flour, and baking powder, and is chilled for two hours before being kneaded, rolled out, and cut into circles. Unlike yeast donuts, cake donuts do not contain any yeast and do not need to rise before frying. The texture of cake donuts is different from yeast donuts because of the method, with a crisp golden outside and a soft, chewy interior crumb. Cake donuts can be topped with a variety of toppings, such as cinnamon sugar, powdered sugar, or glaze. Cake donuts are a thoroughly American invention, first appearing in US cookbooks in the 1830s when baking soda and baking powder first became commercially available.