Creamy, bright, and utterly irresistible, this Limoncello Mascarpone Cake features a crisp graham cracker crust and a velvety mascarpone filling laced with fresh lemon zest and limoncello.
Prepare the crust: In a medium bowl, mix graham cracker crumbs, melted unsalted butter, and granulated sugar until evenly moistened. Press the mixture firmly into the bottom of a 9-inch springform pan to form an even crust. Chill the crust in the refrigerator for 15 minutes to set.
Make the mascarpone filling: In a large bowl, beat softened mascarpone cheese with powdered sugar, the zest of lemons, and the juice of lemons until smooth and lump-free.
Whip the cream: In a separate chilled bowl, whip cold heavy cream to soft peaks, then gradually whisk a few tablespoons at a time into the mascarpone mixture until incorporated and fluffy. If using, gently fold in Limoncello liqueur at the end.
Assemble and chill: Spread the mascarpone mixture evenly over the chilled crust, smoothing the top with a spatula. Cover the pan with plastic wrap and refrigerate for at least 4 hours, preferably overnight.
Finish with topping: Right before serving, whip the remaining cold heavy cream with powdered sugar until stiff peaks form. Spread or pipe the whipped cream on top of the cake.
Garnish and serve: Decorate with thin lemon slices or extra lemon zest. Release the springform and transfer the cake to a serving plate if desired. Serve cold and enjoy!
Notes
This cake benefits from sitting overnight — flavors marry and the texture becomes creamier.