Preheat your oven to 350°F (175°C). In a mixing bowl, combine the graham cracker crumbs and melted butter. Stir until the mixture resembles wet sand. Press this mixture firmly into the bottom of an 8x8 inch baking dish to form an even layer. Bake for 10 minutes, then remove from the oven and set aside to cool.
In another bowl, beat together the room temperature butter, light brown sugar, granulated sugar, and salt until creamy. Add in the vanilla extract and mix well. Gradually incorporate the flour, mixing until just combined. Fold in the chocolate chips. Set the cookie dough aside.
In a separate bowl, use an electric mixer to beat the cream cheese until smooth. Add the granulated sugar and mix until well combined. Add the egg and vanilla extract, mixing until fully incorporated and the mixture is creamy.
Pour the cheesecake filling over the cooled graham cracker crust and spread it evenly with a spatula. Next, drop spoonfuls of the cookie dough over the cheesecake layer, gently spreading it with the back of a spoon or your fingers. It’s okay if the cookie dough does not cover the entire surface; it will spread while baking.
Place the assembled dish in the preheated oven and bake for about 30-35 minutes, or until the cheesecake is set and the cookie dough is lightly golden. Remove from the oven and let it cool completely in the baking dish before slicing.
Once cooled, place the bars in the refrigerator for at least 2 hours to fully set. When ready to serve, cut into squares and enjoy your delicious Chocolate Chip Cookie Dough Cheesecake Bars!