Preheat the oven to 425. Cut the top off of a small pumpkin. Clean out the seeds, and butter the inside and outside of the pumpkin. Bake for 15 minutes. Then, sprinkle 1tbsp of brown sugar and cinnamon on top. Then, bake the pumpkin for five minutes. Then, add a cup of marshmallows to the pumpkin and a sprinkle of cinnamon. Bake for another 5 minutes, and enjoy.