Preheat your oven to 350°F (175°C) and line the bottom of a 7-inch springform pan with parchment paper. Wrap the outside of the pan with aluminum foil.
Crush 22 Oreo cookies until they resemble wet sand and mix with melted butter. Press into the bottom of the prepared pan and bake for 8-10 minutes.
In a stand mixer, combine cream cheese, sugar, eggs, sour cream, vanilla extract, and salt. Beat until smooth, scraping down the bowl as necessary.
Fold in chopped Oreos into the cheesecake batter.
Pour the cheesecake batter into the crust and place the pan in a larger roasting dish. Fill the dish with hot water until it reaches halfway up the sides of the springform pan.
Bake at 325°F for about 75 minutes, or until the center slightly jiggles.
Turn off the oven and let the cheesecake cool slowly in the oven for about an hour.
Chill the cheesecake at room temperature before covering it and refrigerating for at least four hours or overnight.
Melt chocolate chips with heavy cream for ganache, then pour over the cooled cheesecake.
Top with whipped cream and halved Oreos before serving.
Notes
Ensure ingredients are at room temperature for best results. Use a sharp knife for clean slicing.