Preheat the oven to 325°F (163°C).
Mix graham cracker crumbs, sugar, and melted butter in a bowl. Press into the bottom of a springform pan.
Beat cream cheese, mascarpone, and sugar until smooth. Add eggs one at a time, mixing after each.
Stir in vanilla, instant coffee, brewed espresso, and heavy cream. Mix until well combined.
Pour the cheesecake mixture over the crust. Bake for 60 minutes or until set. Let it cool.
After the cheesecake has cooled, layer the top with broken ladyfingers soaked in espresso.
Dust with cocoa powder and garnish with shaved chocolate.
Refrigerate for at least 4 hours before serving.