Making Lemon Tiramisu is a delightful process. Follow these steps to create this incredible dessert:

1. Prepare Lemon Syrup: In a small saucepan, combine lemon juice and granulated sugar. Heat gently over low heat, stirring until sugar is dissolved. Remove from heat and let it cool.

2. Mix Mascarpone: In a medium bowl, whisk together mascarpone cheese, lemon zest, and vanilla extract until smooth and creamy.

3. Whip Cream: In a separate bowl, whip heavy cream until stiff peaks form. Carefully fold the whipped cream into the mascarpone mixture. Be gentle to maintain the fluffiness.

4. Dip Ladyfingers: If using limoncello, mix it with the lemon syrup. Quickly dip each ladyfinger into the lemon syrup, taking care not to soak them too long, as they will become too soggy.

5. Layer the Dish: Arrange a layer of dipped ladyfingers at the bottom of your serving dish or individual cups.

6. Add Mascarpone Layer: Spread a generous layer of the mascarpone mixture over the ladyfingers.

7. Repeat Layers: Repeat the process, alternating layers of ladyfingers and mascarpone mixture until you’ve used all ingredients. The top layer should be mascarpone.

8. Chill: Cover your dish with plastic wrap and refrigerate for at least 4 hours, or preferably overnight, for the best flavor and texture.

9. Garnish: Before serving, garnish with fresh mint leaves and additional lemon zest for a pop of color.