Step 1: Preheat Oven : Preheat oven to 350°F (175°C). Grease a 9-inch springform pan and line the bottom with parchment paper.

Step 2: Make Graham Cracker Crust In a medium bowl, combine graham cracker crumbs, sugar, cinnamon, and melted butter. Press mixture evenly into the bottom of the prepared pan. Bake crust for 8–10 minutes. Remove from oven and cool slightly.

Step 3: Prepare Cheesecake Filling : In a large bowl, beat cream cheese and sugar until smooth and creamy. Add pumpkin puree and mix until fully combined. Beat in eggs one at a time, then add vanilla extract and spices (cinnamon, nutmeg, ginger, cloves). Stir in sour cream or heavy cream until filling is smooth.

Step 4: Assemble Cheesecake : Pour the pumpkin cheesecake filling over the baked graham crust. Smooth the top with a spatula.

Step 5: Bake Cheesecake : Bake for 60–70 minutes, or until the edges are set and the center slightly jiggles when tapped.Turn off oven and let cheesecake cool inside for 1 hour to prevent cracking.

Step 6: Chill : Remove from oven and cool completely at room temperature. Refrigerate for at least 4 hours or overnight to set fully.

Step 7: Serve : Release the springform pan and transfer cheesecake to a serving plate. Optionally top with whipped cream, caramel sauce, or chopped pecans. Slice and serve chilled.