Preheat your oven to 325°F (163°C). Line an 8x8-inch baking pan with parchment paper, leaving some overhang for easy removal.
In a medium bowl, combine the Oreo cookie crumbs and melted butter, mixing until thoroughly combined and resembles wet sand. Press the mixture evenly into the bottom of the prepared pan to form the crust. Bake for 10 minutes, then remove from the oven and let cool while preparing the cheesecake filling.
In a large mixing bowl, beat the softened cream cheese with an electric mixer on medium speed until smooth and creamy, about 2-3 minutes.
Add in the granulated sugar and beat until fully incorporated and fluffy.
Add the eggs, one at a time, mixing well after each addition. Then stir in the vanilla extract and sour cream until the mixture is smooth and well blended.
Gently fold in the crushed Oreo cookies until evenly distributed throughout the cheesecake batter.
Pour the cheesecake mixture over the cooled Oreo crust in the baking pan, spreading it evenly with a spatula.
Bake for 30-35 minutes or until the edges are set and the center is slightly jiggly. Turn off the oven and leave the bars inside for another 10 minutes.
Remove from the oven and allow to cool at room temperature. Once cooled, refrigerate for at least 4 hours, or overnight, to set completely.
Once chilled, lift the cheesecake out of the pan using the parchment overhang, cut into bars, and garnish with whipped cream and extra crushed Oreos if desired.
Notes
Chill overnight for best results.
Keyword cheesecake, cookies and cream, dessert bars