A cinnamon roll (also known as cinnamon bun, cinnamon swirl, cinnamon Danish and cinnamon snail) is a sweet roll commonly served in Northern Europe (mainly in Nordic countries, but also in Austria and Germany) and North America.A cinnamon roll consists of a rolled sheet of yeast-leavened dough onto which a cinnamon and sugar mixture (and raisins or other ingredients in some cases) is sprinkled over a thin coat of butter.