Making Lemon Tiramisu is an enjoyable experience! Follow these simple steps to create your dessert:

1. Prepare the Coffee Mixture: In a shallow dish, mix the cooled espresso or coffee with lemon juice. Set aside.
2. Whip the Cream: In a large mixing bowl, whip the heavy cream until soft peaks form. Gradually add 1/2 cup of granulated sugar and continue whipping until stiff peaks form.
3. Mix the Mascarpone: In another bowl, combine the mascarpone cheese, lemon zest, vanilla extract, and remaining sugar (1/4 cup). Mix gently until smooth and creamy.
4. Combine: Gently fold the whipped cream into the mascarpone mixture until fully incorporated. Be careful to maintain the airy texture of the cream.
5. Soak the Ladyfingers: Quickly dip each ladyfinger into the coffee mixture for about 1-2 seconds, ensuring they are soaked but not soggy.
6. Layer the Ingredients: In a rectangular dish, arrange a layer of soaked ladyfingers. Spread a portion of the mascarpone mixture over the ladyfingers, smoothing it out evenly.
7. Add Lemon Curd: If using lemon curd, spread a thin layer over the mascarpone mixture for an additional flavor burst.
8. Repeat Layering: Repeat the process with another layer of soaked ladyfingers and mascarpone mixture until all ingredients are used, ending with the mascarpone layer on top.
9. Chill: Cover the dish with plastic wrap and refrigerate for at least 4 hours, or overnight for better flavor development.
10. Serve: Once chilled, dust the top lightly with powdered sugar and garnish with lemon slices or extra lemon zest before serving.

These straightforward instructions will guide you in crafting a stunning Lemon Tiramisu that tastes just as good as it looks!