Add the water to the inner pot, followed by the trivet.
Cut the pumpkin tops off, and then cut each pumpkin into 6 equal slices.
Scoop/scrape the pumpkin seeds and pulp off the slices.
Place the pumpkin slices on top of the trivet and stack them on top of each other.
Set the pressure valve to sealing, and then set for a manual high-pressure time of 6 minutes total. At the end of the cooking time, allow for a quick pressure release.
Remove the pumpkin slicing from the pot. The pumpkin peels will easily fall off the slices after which you add the cooked pumpkin flesh to your blender or food processor.
Process the pumpkin until a nice purée has formed.
Use your homemade pumpkin puree as an ingredient for another recipe or store it in the refrigerator in an airtight jar or container for up to 7 days.
Notes
Choose the Right Pumpkin: For the best flavor, make sure to choose a sugar pumpkin or a pie pumpkin, not a carving pumpkin.
Cut Evenly: Cut your pumpkin into even pieces to ensure it cooks evenly in the Instant Pot.
Do Not Overcook: Be careful not to overcook the pumpkin as it can become too soft and watery, which will affect the consistency of your puree.
Drain Well: After cooking, drain the pumpkin well to remove any excess water before pureeing.