The batches I have done have been partial mash. The first time I just dumped the pumkin right out the can and mashed with grains in a grain bag. The second time I used more pumpkin, baked it and added it to the grains while mashing. After I sparged I disposed of the grains and pumpkin, I did not boil the pumpkin. To be 100% honest I added more pumpkin this time than I had previously so I had a noticible amount of increased pumpkin taste, but I will say I think the pumkin had the same overall flavor just more intense since I used more.