MAKE THE PISTACHIO CREAM: In a bowl, beat heavy cream until soft peaks form. In another bowl, mix mascarpone, pistachio paste, sugar, and vanilla until smooth. Fold the whipped cream gently into the mascarpone mixture until silky.
SOAK THE LADYFINGERS: Combine espresso and liqueur (if using). Dip each ladyfinger briefly into the coffee — don’t soak too long or they’ll fall apart.
ASSEMBLE THE TIRAMISU: Layer soaked ladyfingers at the bottom of a dish or individual cups. Spread half of the pistachio cream on top. Add another layer of ladyfingers and finish with the remaining cream.
CHILL & DECORATE: Refrigerate for at least 4 hours or overnight. Before serving, sprinkle with chopped pistachios and white chocolate curls.
Notes
Make it gluten-free using GF ladyfingers.
Add a layer of Nutella between the cream for a decadent twist.
For a vibrant color, mix a drop of green food coloring into the cream.