Give your pumpkin a good wash before starting.
Use a sharp knife to cut a circle around the stem. Discard the stem and use a spoon to scrape out the guts and the seeds.
Add 1 cup (230ml) of water to the instant pot.
Place the pumpkin cut-side-up on a wire rack (with the opening up) and put it into the pot. If your pumpkin is too large, simply cut it in half. Cover with the lid and cook for 15minutes on high pressure (use the pressure cook setting). Don’t forget to set the pressure valve to seal!
Once the pumpkin is finished cooking, natural release for 5 minutes, then quick release.
Check if the pumpkin is ready. Pork a fork into the pumpkin’s skin and flesh to check if it’s soft (fork-tender). If not, pressure cook for another 5 minutes.
Then pull the pumpkin out of the instant pot and place it onto a cutting board. Let cool for a couple of minutes.
Then cut it in half lengthwise and scrape the pumpkin flesh away from the skin.
Add it to a food processor and blend until smooth. Alternatively you could use an immersion blender.