Start by lining the bottom of a 7.5in springform pan with parchment paper and spray pan with baking spray or some other type of non-stick spray.
Next, use a food processor and grind up the Oreos into small crumbs. Once done, mix in the melted butter.
Then, take and spread the crust mixture into the springform pan and up the sides to completely cover it.
After that's finished, take and place it into the freezer while you start to make the cheesecake mixture.
You're going to want to use a standing mixer for this next step. Start to beat together the cream cheese and sugar until combined and smooth.
Next, add in and beat in the vanilla, flour, nutella, and heavy cream until it's all combined very well.
Grab your eggs and beat them in one at a time.
After that, it's time to pour your cheesecake mixture into the crust.
Add in 1 cup of water into the Instant Pot and then place the trivet inside.
Cover the cheesecake springform pan with foil and carefully place the cheesecake down into the Instant Pot.
Next, take and lock the lid in place. Select high presser and set the timer for 50 minutes.
When it beeps and is done, allow for a natural release. Then turn off and allow the cheesecake to cool for 1 hour.
Carefully remove the lid from the pot and make certain that you place it onto the counter and allow it to cool completely.
Place your cheesecake in the fridge overnight.