While the dough rises, prepare the filling by brown sugar, cinnamon and cornstarch. Make sure your butter is soft enough to spread, if it is not place in the microwave for 10 second burst till spreadable.
Once the dough has doubled for a second time, turn it out onto a lightly oiled surface. Press it down gently to release the air.
Roll the dough into a rectangular shape, approximately 16×20 inches.
Spread the butter over the entire surface.
Then spread the cinnamon sugar over the dough leaving one inch at the side closest to you.
Starting from the long side (without the border), tightly roll the dough into a log. Pinch the seam to seal.
Using a bench scraper, cut the log into 8-12 equal pieces (depending on how big you want your rolls).
Arrange the rolls in a greased 9×13-inch baking dish, leaving some space between each roll.
Cover with plastic wrap and let rise for 45 minutes to 1 hour, or until puffy. They do not need to double.