Step 1

Preheat the oven to 350°F. Grease a 9×9-inch pan and line the bottom and sides with parchment paper. Allow the butter to soften for at least 20 minutes. Allow cheesecake ingredients to come to room temperature.

Step 2

Combine the softened butter with the brown and granulated sugar. Beat on medium speed until well combined, 2-3 minutes. Next add the egg, egg yolk, and vanilla extract and continue beating until well incorporated.

Step 3

In a separate bowl, combine the flour, salt, and baking soda. Slowly add the dry ingredients into the dough, mixing on low speed until the dough starts to form. Add the chocolate chips. Beat until incorporated. Press the dough into an even layer in the prepared pan.

Step 4

Place a layer of Oreos cookies over top of the cookie dough, cutting to fit as needed.

Step 5

In a mixing bowl, beat the cream cheese and sugar until well combined and free of any lumps, scraping down the bowl as needed.

Step 6

Next add the sour cream and vanilla extract, beating until well combined. Finally, beat the eggs just until the mixture is combined. Fold in the crushed Oreos. Pour the cheesecake batter over top of the Oreos and cookie dough. Roughly chop 5 more Oreos to scatter on top.

Step 7

Bake at 350°F for 25-30 minutes. The centers of the cheesecake should be slightly giggly. Remove from the oven and cool completely in the pan. Then refrigerate for a minimum of 3 hours prior to slicing.