Brew a cup of strong coffee or espresso and let it cool. If making a fruit-flavored version, use your favorite fruit juice. Optionally, add 1/4 cup of your chosen liqueur to enhance the flavor.
Prepare the Cream Filling:
In a large mixing bowl, beat the chilled heavy cream until soft peaks form.
In a separate bowl, combine the mascarpone cheese, granulated sugar, and vanilla extract. Mix until smooth and well combined.
Gently fold the whipped cream into the mascarpone mixture until fully incorporated and smooth.
Assemble the Cake:
Lightly dip each sponge finger into the cooled coffee or fruit juice mixture, ensuring they are moistened but not soggy.
Arrange a layer of dipped sponge fingers in the bottom of a rectangular or square baking dish, covering the entire base.
Add the Cream Layer:
Spread half of the mascarpone cream mixture evenly over the layer of sponge fingers.
Add another layer of dipped sponge fingers on top of the cream layer.
Spread the remaining cream mixture evenly over the second layer of sponge fingers.
Chill the Cake:
Cover the baking dish with plastic wrap and refrigerate for at least 4 hours, or preferably overnight. This allows the flavors to meld and the cake to set properly.
Garnish and Serve:
Just before serving, dust the top of the cake with unsweetened cocoa powder if you’re making the coffee-flavored version.
For a fruit-flavored version, garnish the top of the cake with fresh berries or fruit slices.
Optionally, add chocolate shavings or curls for an extra touch of elegance.
Tips for Perfect Sponge Fingers Cake
Quick Dipping: When dipping the sponge fingers, do it quickly to prevent them from becoming too soggy and losing their structure.
Chill Time: Allowing the cake to chill for at least 4 hours is crucial for the flavors to meld and for the cake to achieve the right texture.
Quality Ingredients: Use high-quality mascarpone cheese and fresh cream for the best results. Freshly brewed coffee or juice also enhances the flavor.