Line Baking Pan: Line a 9x13 inch baking pan with parchment paper. If you don’t have a 9x13 pan, two 9-inch square or round baking pans can be used as alternatives. This recipe yields 12-15 rolls, so choose your pans accordingly to accommodate all the rolls without overcrowding. Set aside.
Roll Dough: Lightly flour a rolling pin and roll out the dough on a floured surface into a 14x18-inch rectangle.
Apply Filling: Spread the pumpkin-butter mixture over the rolled dough, leaving a small margin around the edges. Evenly sprinkle the sugar mixture on top.
Roll & Cut: Tightly roll up the dough from the short 14-inch side, ending with the seam side down. Cut the log into 12-15 rolls using unflavored dental floss for the cleanest cuts, although a very sharp knife can also be used, being mindful that it may slightly compress the dough.
Arrange in Pan: Place the rolls in the prepared pan, allowing space for expansion. If you have more than 12 rolls, use an additional smaller baking pan to avoid overcrowding, as squeezing them too closely will cause the rolls to rise unevenly and possibly deform.
Second Rise: Cover with plastic wrap or a damp tea towel and let the rolls rise in a warm spot for 25-30 minutes until nearly doubled in size.
Preheat Oven: Preheat your oven to 350°F (180°C).
Baking: Bake for 20-23 minutes until the rolls are lightly browned. Remove from the oven and leave in the pan while you make the icing.