Preheat the oven to 180°C (350°F).
Combine crushed biscuits and melted butter in a bowl until evenly coated.
Press the mixture firmly into the base of a 9-inch springform pan. Chill in the refrigerator while you prepare the filling.
In a large bowl, beat cream cheese, mascarpone, and sugar until smooth.
Add eggs one at a time, mixing well after each addition.
Mix in flour, espresso, coffee liqueur, and vanilla extract until just combined.
Pour the filling over the chilled base. Bake for 50–60 minutes, or until the edges are set but the center is slightly wobbly.
Turn off the oven, crack the door open, and let the cheesecake cool in the oven for 1 hour to prevent cracking.
Once cooled, refrigerate for at least 6 hours or overnight.
Gently remove the cheesecake from the pan. Spread or pipe whipped cream over the top, mixing it with coffee liqueur for an extra boozy touch.
Dust with cocoa powder and garnish with coffee beans or chocolate shavings if desired.