Creating this incredible Tiramisu Cheesecake is straightforward. Just follow these simple steps:

1. Preheat the Oven: Preheat your oven to 325°F (160°C). Grease a 9-inch springform pan.

2. Prepare the Crust: In a bowl, combine graham cracker crumbs, melted butter, and granulated sugar. Mix until well combined. Press the mixture evenly into the bottom of the prepared springform pan.

3. Bake the Crust: Place the crust in the preheated oven and bake for about 10 minutes. Remove and let cool while you prepare the filling.

4. Mix the Cream Cheese: In a large mixing bowl, beat the softened cream cheese with granulated sugar until smooth and creamy.

5. Add Vanilla and Eggs: Mix in the vanilla extract and add eggs one at a time, blending well after each addition.

6. Incorporate Mascarpone: Add the mascarpone cheese and mix until well combined. Be careful not to overbeat.

7. Add Coffee and Liqueur: Pour in the cooled brewed coffee and coffee liqueur (if using), mixing until fully incorporated.

8. Add Flour: Sprinkle the flour into the batter and mix gently until combined.

9. Pour the Filling: Pour the cheesecake filling over the cooled crust in the springform pan.

10. Bake the Cheesecake: Bake in the preheated oven for about 50-60 minutes, or until the center is set but slightly jiggly.

11. Cool the Cheesecake: Turn off the oven, crack the oven door, and let the cheesecake cool in the oven for about 1 hour.

12. Chill: After cooling, refrigerate the cheesecake for at least 3 hours, or overnight for best results.

13. Dust with Cocoa: Before serving, dust the top of the cheesecake with cocoa powder and add chocolate shavings if desired.