Step 1

Preheat oven to 350°F. Line the bottom of a 9-inch springform pan with parchment paper and gently spray the sides with baking spray. Set aside.

Step 2

In a medium bowl, whisk together the crushed Oreos cookies and melted butter until the mixture resembles wet sand. Press the crust mixture into the bottom of the springform pan in an even layer.

Step 3

Bake for 15 minutes.

Step 4

Once baked, remove the pan from the oven and place onto a cooling rack to cool slightly while you make the cheesecake batter.

Step 5

In the bowl of a stand mixer fitted with the paddle attachment, beat the cream cheese and sugar together for 1 minute to ensure that it is smooth and creamy. Add the heavy cream, sour cream, vanilla, and salt, and beat together for 30 seconds. Add the eggs and egg yolks and beat for 30 seconds to fully incorporate.

Step 6

Add the melted chocolate chips, cocoa powder, and flour and mix until completely combined.

Step 7

Pour the cheesecake batter into the springform pan on top of the crust and smooth out.

Step 8

Wrap the bottom and up the sides of a springform pan with foil to prevent any water from seeping in. Place the springform pan into a larger baking pan or broiler pan filled with enough hot water to come 1 inch up the sides of the springform pan to create a water bath.

Step 9

Place both pans into the oven to bake for 90 minutes. To prevent the cheesecake from browning excessively, you may tent a piece of foil over the cheesecake after 45-60 minutes of baking. Make sure the foil does not touch the surface of the cheesecake.

Step 10

Once baked, turn the heat off and leave the cheesecake in the oven with the door closed for 1 hour.

Step 11

Once set, remove the cheesecake from the oven, unwrap the foil from the springform pan, and place a springform pan onto a cooling rack or hot pad to cool completely.

Step 12

Once cooled, cover with foil or plastic wrap and place in the refrigerator to chill for at least 8 hours.

Step 13

To make the frosting, combine all of the frosting ingredients in the bowl of a stand mixer fitted with the paddle or whisk attachment. Beat together for 2 minutes on medium-high speed or until a fluffy frosting has formed.

Step 14

Spoon the mixture into a piping bag fitted with an open star tip.

Step 15

To remove the cheesecake from the springform pan, run a butter knife around the inside of the springform pan to release the cheesecake. Release the springform and remove the pan sides from the cheesecake. Place the cheesecake on a serving platter or cake stand.

Step 16

Pipe swirls around the top edge of the cheesecake. Slice into 10 slices and serve.