Once the dough has proved for 2 hours, roll it out on a well-floured surface into 24 inch by 8 inch rectangle. Make sure that the long end is horizontal so that you can easily roll it (see photos above).
Spread the softened butter that you have set aside for the filling over the dough, completely covering it.
Evenly sprinkle the cinnamon and sugar filling mixture over the buttered dough.
Tightly roll the dough, ensuring that the longer side is horizontal, creating a long tube. Pinch the seam of the dough closed to ensure that filling remains intact.
Cut the dough into 12 2-inch rolls and place them in a 9x13-inch pan that is lined with parchment paper.
Cover the dough and allow it to prove for another 2 hours at room temperature.
After the second and final prove, bake the rolls at 375 degrees for 35-40 minutes or until golden brown. Let the rolls cool to room temperature before adding a topping.