Creating Nutella Tiramisu can be easy! Follow these steps for a delightful dessert:

1. Prepare Coffee Mixture: In a shallow dish, mix the brewed coffee with the coffee liqueur (if using) and set aside.
2. Whip Heavy Cream: In a mixing bowl, whip the heavy cream until soft peaks form.
3. Mix Cheesecake Base: In another bowl, combine mascarpone cheese, Nutella, granulated sugar, and vanilla extract. Mix until smooth and creamy.
4. Fold in Whipped Cream: Gently fold the whipped cream into the Nutella mixture until fully combined. Be careful not to deflate the whipped cream.
5. Dip Ladyfingers: Briefly dip each ladyfinger into the coffee mixture, ensuring they are soaked but not too soggy.
6. Layer the Ingredients: In a 9×9-inch dish, arrange a layer of soaked ladyfingers on the bottom. Spread half of the Nutella mascarpone mixture over the ladyfingers.
7. Repeat Layers: Add another layer of dipped ladyfingers on top of the mascarpone mixture, followed by the remaining Nutella mixture.
8. Chill: Cover and refrigerate the tiramisu for at least 4 hours, ideally overnight, to allow flavors to meld.
9. Dust with Cocoa: Before serving, dust the top generously with cocoa powder and add chocolate shavings if desired.
10. Slice and Serve: Cut into squares and enjoy this incredible dessert!

By closely following these steps, you'll have a beautiful Nutella Tiramisu ready to impress your family and friends.