Preheat the oven to 200 degrees Celsius / 390 Fahrenheit top and bottom heat.
Cut the pumpkin in half, leaving the seeds in, and place the skin side up on a baking sheet lined with parchment paper.
Roast it in the oven for 30-60 minutes or until the pumpkin is soft. It is ready when you can easily pierce it with a fork.
Leave the pumpkin to cool for a while. Then you can now easily remove the skin and scoop out the seeds.
Put the pumpkin flesh in the food processor and pulse until smooth, you can also use an immersion blender. You can add a small amount of water if the puree is too thick. The longer you mix, the smoother your puree will be. Enjoy!