Preheat oven to 350°F (175°C). Grease a 9-inch springform pan.
In a medium bowl, combine crushed sugar cookies and melted butter. Press mixture firmly into the bottom of the prepared springform pan to form the crust.
2.5 cups crushed sugar cookies
Bake the crust for 8-10 minutes, then let it cool slightly.
In a large bowl, beat the cream cheese and granulated sugar until smooth and creamy.
2.5 cups crushed sugar cookies
Beat in the sour cream and vanilla extract until well combined.
2.5 cups crushed sugar cookies
Add the eggs one at a time, beating on low speed after each addition, until just combined. Do not overmix.
2.5 cups crushed sugar cookies
Pour the filling over the prepared crust.
Bake for 50-60 minutes, or until the edges are set and the center is slightly jiggly.
Turn off the oven, crack open the oven door, and let the cheesecake cool in the oven for 1 hour. This helps prevent cracking.
Remove from the oven and let cool completely on a wire rack. Then, refrigerate for at least 4 hours, or preferably overnight.
Before serving, top with whipped cream and sugar cookie crumbles.
2.5 cups crushed sugar cookies
Notes
This cheesecake is best served chilled. You can also make it ahead of time.