Preheat your oven to 350°F (175°C) and line a 9x9 inch baking dish with parchment paper, leaving some overhang on the sides for easy removal later.
In a medium bowl, combine the graham cracker crumbs, melted butter, brown sugar, and a pinch of salt. Mix until the crumbs resemble wet sand.
Press the crumb mixture evenly into the bottom of the prepared baking dish to create the crust. Bake for 10 minutes, then remove from the oven and let it cool slightly.
In a large mixing bowl, beat the softened cream cheese until smooth and creamy using an electric mixer. Scrape down the sides of the bowl as needed.
Add the pumpkin puree, granulated sugar, eggs, vanilla extract, pumpkin pie spice, cinnamon, and salt to the cream cheese. Mix on medium speed until all ingredients are well combined and smooth.
Pour the pumpkin cheesecake batter over the cooled crust and spread evenly.
Bake in the preheated oven for 25-30 minutes, or until the center is set but slightly jiggly. It will firm up as it cools.
Once baked, remove the cheesecake bars from the oven and allow them to cool at room temperature for about 1 hour. Then, refrigerate for at least 4 hours or overnight for best results.
Once chilled, lift the cheesecake bars out using the parchment overhang and cut into squares.
Notes
Serve each bar on a plate with a sprinkle of cinnamon on top, and a dollop of whipped cream on the side for an extra treat. Garnish with a few pecans or walnuts for added texture.