Option 1 - Melt some butter in a small bowl. In a separate small bowl, whisk together granulated sugar and cinnamon. Dip the balls in butter, then coat them in the cinnamon sugar mixture.
Option 2 - Add all the small dough balls to a large container with a lid and shake over cinnamon sugar to stop them from sticking together. Shake the container to coat all the dough pieces in the cinnamon sugar mixture, then drizzle over the butter and shake again to coat.
Grease a 10-inch bundt pan, and layer the coated little dough balls in the pan.
Cover the bundt pan with a damp kitchen towel and let the dough rise again until about doubled in size.
When the dough has almost finished rising, preheat the oven to 350°F/ 180°C.
Melt brown sugar, butter, pumpkin puree, heavy cream, and salt in a saucepan over medium heat. Bring to a boil and cook for 2-3 minutes, whisking constantly.
Take off the heat, then stir through salt and vanilla. Let it cool for a couple of minutes, then drizzle this carefully all over the dough. You might need need to give it time to seep through so it doesn't overflow.
Bake the monkey bread for 35-40 minutes until deeply browned on top. If the top is browning too fast, lay a piece of aluminum foil on it. Sometimes the butterscotch sauce can spill out so you can place a tray or a sheet of foil underneath to catch any spills.
Once baked, let it cool for 5-10 minutes, then carefully invert it onto a serving plate.