Preheat the oven to 400°F / 200°C. Cut pumpkin in half lengthwise. With a spoon remove all the seeds and strings. Brush pumpkin flesh with oil, sprinkle with a pinch of salt and place flesh down on the baking sheet lined with parchment paper. Bake for 35-45 minutes or until fork-tender. Roasting time will depend on the size of your pumpkin. Remove from the oven, let it cool, and use it in your favorite recipes. If you want to make a homemade puree, simply blend its flesh in a high-speed blender or food processor until smooth and creamy. Yes, it's that easy!