My husband enjoyed these when we visited Prague. This Czech Cinnamon Pastry-Trdelnik is sold by street vendors all over Prague, A yeast dough, wrapped around a cylinder, rolled in cinnamon sugar and then baked over an open flame.
Our family has a similar one Slovak Rolls, Kolach Rolls. These come from my Slovak Grandmother and were enjoyed at Christmas and other times of the year. Rich yeast dough rolled with fillings of walnut or popy seeds.