Prepare the Cinnamon Sugar Mixture: In a medium bowl, combine ½ cup of granulated sugar with 2 tablespoons of ground cinnamon. Set aside.
Preheat the Oven: Set your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish with non-stick cooking spray.
Prepare the Bottom Layer: Unroll one can of crescent roll dough. If using perforated dough, press the seams together to seal. Place the dough evenly in the prepared baking dish, pressing it to cover the bottom completely.
Add the Cinnamon Sugar Base: Sprinkle half of the prepared cinnamon sugar mixture evenly over the dough layer.
Prepare the Cheesecake Filling: In a large bowl, beat the softened cream cheese until smooth. Add 1 cup of granulated sugar, the egg, and vanilla extract. Mix until well combined and creamy.
Assemble the Bars: Spread the cheesecake filling evenly over the bottom dough layer. Unroll the second can of crescent roll dough, seal any perforations, and place it over the cheesecake filling, covering it completely.
Add the Topping: Sprinkle the remaining cinnamon sugar mixture evenly over the top layer of dough.
Bake: Bake in the preheated oven for approximately 30 minutes, or until the top is golden brown and the cheesecake filling is set.
Cool and Serve: Remove from the oven and allow the bars to cool in the baking dish. Once cooled, refrigerate for at least 1 hour before slicing into bars and serving.