If you roasted the pumpkin with seeds, use a metal spoon to scoop out the seeds and discard. Otherwise, scoop out the flesh.
Puree the flesh in a high speed blender (I use VitaMix
). Puree' on low speed, then increase to high for about 20-30 seconds using a tamper if needed. Periodically, scrape the container down as the pumpkin really sticks to the side. Blend again for 30-40 seconds, stopping to scrape when needed. Blend until silky smooth or desired consistency is reached. Pumpkin can be pureed using a food processor as well.