Line the bottom of a (7-inch) cheesecake pan with parchment paper and spray the sides with non-stick cooking spray. Set aside.

Using a fork, mix together the Oreo cookie crumbs with the 2 tablespoons melted butter.

Press the cookie crust into the bottom and sides of the cheesecake pan.

Place cheesecake pan with crust in freezer to set while preparing the nutella cheesecake filling.

Using a hand or stand mixer, beat together the cream cheese and granulated sugar until smooth.

Beat in the nutella, 1/4 cup heavy whipping cream, 1 teaspoon vanilla, and flour until combined

Mix in the eggs and egg yolk, one at a time, just until combined. Do not overmix!

Pour cheesecake mixture into the crust.

Pour 1 cup of water inside the instant pot cooking pot.

Place a trivet inside the instant pot.

Cover the cheesecake pan with foil and carefully place the cheesecake into the instant pot using either a foil sling, or the trivet, if it has handles.

Close the lid and set the pressure release valve to sealing.

Press the manual or pressure cook button and set to 50 minutes on high pressure.

Allow the pressure to naturally release.

Carefuly remove the cheesecake from the instant pot.

Let the cheesecake cool at room temperature, for about an hour.

Place cheesecake in the fridge overnight, or for 8 hours.

Once the cheesecake has been chilled, prepare the ganache.

Heat 3/4 cup heavy whipping cream over medium heat until steaming but not boiling.

Place the chocolate chips in a heat safe bowl.

Pour the heated whipping cream over the chocolate chips. Let sit for 2 minutes.

Whisk together the heavy cream and chocolate chips until smooth.

Pour the chocolate ganache over the nutella cheesecake and spread out evenly.

Using a hand mixer or stand mixer, beat together 1 cup heavy whipping cream, powdered sugar, cocoa powder, and 1 teaspoon vanilla. Beat until stiff peaks form, about 5 minutes.

Scoop the chocolate whipped cream into a piping bag.

Pipe the whipped cream around the edges of the cheesecake.

Sprinkle chocolate sprinkles all over the nutella cheesecake.

Serve and enjoy!