Prepare the Crust:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and lightly grease a 9-inch springform pan.
2. Press the Dough: Spread the sugar cookie dough evenly into the bottom of the prepared pan. Press down firmly to create a flat crust.
3. Bake the Crust: Bake for 8-10 minutes until lightly golden. Remove from the oven and let it cool while preparing the filling.

Make the Cheesecake Filling:

4. Beat the Cream Cheese: In a large bowl, beat the softened cream cheese and sugar together until smooth and fluffy.
5. Add the Eggs: Mix in the eggs one at a time, ensuring each is fully incorporated before adding the next.
6. Combine Remaining Ingredients: Stir in the sour cream, vanilla extract, and flour until the mixture is smooth and creamy.

Assemble and Bake:

7. Pour the Filling: Pour the cheesecake filling over the cooled sugar cookie crust, spreading it evenly.
8. Bake the Cheesecake: Bake in the preheated oven for 50-60 minutes, or until the edges are set and the center is slightly jiggly.
9. Cool Gradually: Turn off the oven and leave the cheesecake inside with the door slightly ajar for 1 hour. This prevents cracking.

Chill and Decorate:

10. Refrigerate: Cover and chill the cheesecake in the fridge for at least 4 hours, or overnight for best results.
11. Add Toppings: Before serving, decorate the cheesecake with whipped cream, cookie crumbles, or frosting.