Making Apple Crisp Cheesecake involves several straightforward steps. Here’s how to do it:

1. Preheat the Oven: Start by preheating your oven to 325°F (160°C). Prepare a 9-inch springform pan by greasing it lightly.

2. Prepare the Apple Filling:
– In a large bowl, combine the sliced apples with brown sugar, cinnamon, lemon juice, and cornstarch. Toss until well mixed, then set aside.

3. Make the Cheesecake Layer:
– In a mixing bowl, beat the softened cream cheese with granulated sugar until smooth.
– Add in sour cream, eggs (one at a time), vanilla extract, and lemon juice. Mix until the batter is completely smooth and creamy.

4. Combine the Layers:
– Pour half of the cheesecake batter into the prepared springform pan.
– Top with all of the apple filling, spreading it evenly.
– Carefully pour the remaining cheesecake batter over the apple layer.

5. Prepare the Crisp Topping:
– In a separate bowl, mix together the oats, flour, brown sugar, cinnamon, and salt.
– Pour the melted butter over the mixture and stir until crumbly.

6. Add the Topping: Sprinkle the crisp topping evenly over the cheesecake.

7. Bake: Place the cheesecake in the preheated oven and bake for 50 to 60 minutes until the center is set but still jiggly.

8. Cool: Remove the cheesecake from the oven and let it cool at room temperature for about 30 minutes. Then, transfer it to the refrigerator and chill for at least 2 hours, preferably overnight.

9. Serve: Once chilled, carefully remove the sides of the springform pan. Slice and serve with whipped cream or vanilla ice cream, if desired.