Prepare the crust by mixing graham cracker crumbs, melted butter, granulated sugar, and ground cinnamon. Press into the bottom of a greased 9x9-inch baking pan.
Make the cheesecake filling by beating cream cheese until smooth, then adding powdered sugar, vanilla extract, eggs one at a time, and sour cream until fully combined.
Pour the cheesecake mixture over the crust and spread evenly. Preheat the oven to 325°F.
Bake for 30-35 minutes until edges are set and center is slightly jiggly. Cool at room temperature for 30 minutes.
Prepare the topping by mixing granulated sugar and ground cinnamon. Sprinkle over the cooled cheesecake.
Refrigerate for at least 2 hours before slicing into squares.