In a sauce pan, mix the milk, oil, and 1/2 cup white sugar. Stir over medium heat until the milk is hot. Remove it from the oven, and let sit for about 3 minutes.
Add the yeast, stir and let it sit for 5 minutes.
In large bowl whisk together flour and 1 tsp. pumpkin spice. Add in pumpkin and yeast mixture. Stir till incorporated.
Cover with a towel and let the dough rise for 90 minutes.
Add the remaining flour, powder, soda, and salt. Stir until a well combined dough forms.
Roll out the dough into a 1/4 inch thick rectangle.
Melt the butter and spread it onto the dough. Sprinkle the sugars and 1 tbsp spice on top, and then tightly roll.
Preheat the oven to 375F.
Slice the dough into 1/2 inch thick rolls, and place into two round cake pans. Let the rolls sit for 30 minutes.
Bake the rolls for 20 minutes.