Thaw one loaf of frozen bread dough. Flatten into an oblong shape with hands and a greased rolling pin. Spread to edges with soft butter. Sprinkle with a mixture of cinnamon and sugar. Roll up. Cut into 1/2 inch, or bigger, slices. Place in a greased round pans and allow to rise in a warm place. Bake at 350 degrees until brown and hollow sounding when tapped. Brush butter on top. Remove from pans and cool slightly before serving.