A type of bread formed into a roll or bun shaped that is made from a yeasted dough enriched with eggs, butter, and milk. The dough is flattened with a rolling pin, topped with cinnamon and brown sugar, and rolled up similar to a jelly roll. The rolled dough is sliced into individual rolls, which after raising and baking, are cooled slightly and iced with white frosting. Some recipes for cinnamon buns contain chopped nuts, raisins, or currants. Cinnamon buns are a popular breakfast item in the United States.