Repeat with the second half of the dough and filling ingredients. With seam side down, slice each roll into 8 equal pieces. Place on prepared baking sheet with spiral side up. Cover with a cloth and set aside to rise in a warm place about 45 minutes. Preheat oven to 400 degrees and bake about 20 minutes, until golden brown on edges and bottom.
Transfer rolls to a cooling rack and cool before frosting.
Makes 16 rolls. Add cinnamon and half the powdered sugar slowly and mix well. Add remaining sugar and mix until good spreading consistency. Add more powdered sugar if necessary. Makes about 1 cup frosting.