Step 1: Preheat your oven to 350°F (175°C).
Step 2: Line your 9x13-inch baking pan with parchment paper.
Step 3: In a large mixing bowl, cream together the butter, brown sugar, and white sugar using an electric mixer until light and fluffy.
Step 4: Add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.
Step 5: In another bowl, whisk together the flour, baking soda, and salt. Gradually add to the wet ingredients, mixing until just combined.
Step 6: Gently fold in the semisweet chocolate chips.
Step 7: In a separate bowl, beat together the cream cheese, sugar, and egg until smooth and creamy for the cheesecake filling.
Step 8: Spread half of the cookie dough in the prepared pan, pour the cheesecake mixture over it, then dollop the remaining cookie dough on top.
Step 9: Bake for 30-35 minutes, until the edges are golden and a toothpick inserted comes out clean.
Step 10: Let cool for 10-15 minutes, then lift out using parchment paper and cool completely before slicing.
