Step 1: Prepare the Crust - Preheat your oven to 325°F (160°C). In a food processor, pulse the vanilla wafer cookies until they reach a fine crumb consistency. Combine the crumbs with melted butter in a mixing bowl, then press the mixture evenly into the bottom of your springform pan. Bake for about 10 minutes until lightly golden. Let it cool while you prepare the filling.
Step 2: Make the Cheesecake Filling - In a large mixing bowl, combine the softened cream cheese and mascarpone cheese. Beat them together using an electric mixer until smooth and creamy. Gradually add in the granulated sugar, brewed espresso, Kahlua, and vanilla extract, mixing until fully incorporated.
Step 3: Add the Eggs - One at a time, add the eggs to the cheesecake mixture, mixing on low speed just until combined. Avoid overmixing to keep the cheesecake light and fluffy.
Step 4: Layer the Lady Fingers - Dip each lady finger quickly into the brewed coffee, ensuring they are soaked but not soggy. Place a layer of soaked lady fingers over the cooled crust in the springform pan.
Step 5: Pour the Filling - Gently pour the cheesecake mixture over the layer of lady fingers, smoothing the top with a spatula. Tap the pan lightly on the counter to release any air bubbles.
Step 6: Bake the Cheesecake - Bake the cheesecake in the preheated oven for about 55-65 minutes. The edges should be set, but the center will have a slight jiggle. Turn off the oven and crack the oven door, allowing the cheesecake to cool slowly for about an hour.
Step 7: Chill the Cheesecake - After cooling, refrigerate the cheesecake for at least 4 hours, or overnight for best results. This will help it firm up and enhance the flavors.
Step 8: Prepare the Topping - In a mixing bowl, whisk the cold mascarpone cheese with the heavy cream, powdered sugar, and vanilla extract until soft peaks form. Be careful not to overwhip; you want it to be fluffy but still spreadable.
Step 9: Top the Cheesecake - Once the cheesecake is completely chilled, spread the mascarpone whipped cream on top. Use a spatula to create beautiful swirls and peaks.
Step 10: Serve and Enjoy! - Before serving, dust the top with cocoa powder for that classic Tiramisu look. Slice the cheesecake and enjoy every creamy, coffee-flavored bite!