Prepare the Cheesecake Crust:
Preheat your oven to 325°F (160°C).
In a medium bowl, combine the graham cracker crumbs, sugar, and melted butter. Stir until the crumbs are evenly coated.
Press the mixture into the bottom of a 9-inch springform pan to form a tight, even crust.
Bake the crust in the preheated oven for about 10 minutes. Once baked, set it aside to cool while you prepare the filling.
Make the Cheesecake Filling:
In a large bowl, beat the softened cream cheese with an electric mixer until smooth and creamy.
Add the granulated sugar and vanilla extract, and continue mixing until fully combined.
Add the eggs, one at a time, beating well after each addition.
Once the mixture is smooth, add the sour cream and cinnamon (if using), mixing until fully combined.
Pour the cheesecake batter onto the cooled crust in the springform pan.
Bake the Cheesecake:
Bake the cheesecake at 325°F (160°C) for 50-60 minutes, or until the center is set but slightly jiggly. It should look firm and lightly golden around the edges.
Turn off the oven, crack the oven door, and allow the cheesecake to cool for 1 hour.
Afterward, transfer the cheesecake to the refrigerator and chill for at least 4 hours or overnight to fully set.
Make the Apple Caramel Topping:
While the cheesecake is chilling, heat the butter in a large saucepan over medium heat. Once melted, add the sliced apples.
Cook the apples for about 5-7 minutes, stirring occasionally, until they begin to soften.
Add the brown sugar, heavy cream, vanilla extract, cinnamon, and salt. Stir to combine.
Bring the mixture to a simmer and cook for an additional 5-7 minutes, until the caramel sauce thickens and coats the apples.
Remove the saucepan from the heat and allow the topping to cool slightly.
Assemble the Cheesecake:
Once the cheesecake is fully chilled, carefully release the sides of the springform pan.
Spoon the warm apple caramel topping over the cheesecake, spreading the apples evenly over the surface.
Optionally, garnish with additional cinnamon or chopped nuts like pecans for extra flavor, or gram cracker crumble on top.