Equipment
Ingredients
White Chocolate Pistachio Mascarpone Cream
- 250 g white chocolate (30% cocoa butter), finely chopped
- 500 g mascarpone cheese, room temperature
- 200 ml heavy whipping cream (35% fat), chilled
- 100 g pure pistachio paste, unsweetened
- 5 ml vanilla extract
- 1 g fine sea salt
Coffee Soak
- 300 ml brewed espresso, warm
- 100 ml water
- 30 ml amaretto liqueur
Assembly & Garnish
- 300 g ladyfingers (savoiardi)
- 50 g white chocolate block, solid, room temperature
- 30 g roasted unsalted pistachios, finely chopped
Nutrition (per serving)
Method
In a wide, shallow mixing bowl, combine the warm brewed espresso, water, and amaretto liqueur. Set aside to cool to room temperature. Diluting the coffee ensures the delicate chocolate notes are not overpowered.
Melt the chopped white chocolate in a double boiler over gently simmering water, stirring occasionally with a silicone spatula until smooth. Remove from heat and let cool to about 30 degrees Celsius (86 degrees Fahrenheit) before proceeding.
In a large mixing bowl, beat the room temperature mascarpone cheese, pure pistachio paste, vanilla extract, and sea salt using a hand mixer on low speed just until smooth and uniform.
Pour the cooled, melted white chocolate into the mascarpone mixture. Gently fold together with a silicone spatula until completely emulsified and no streaks remain.
In a separate clean mixing bowl, whip the chilled heavy cream until soft peaks form. Gently fold the whipped cream into the dense pistachio mascarpone base in two additions to lighten the texture.
Quickly dip one side of a ladyfinger into the cooled coffee soak for about 1 second, then flip and dip the other side. Arrange soaked ladyfingers in a single layer in the bottom of a 20x20 cm baking dish. Repeat until the bottom is covered.
Spoon half of the white chocolate pistachio mascarpone cream over the ladyfinger layer. Spread it into an even, smooth layer using a spatula.
Repeat the dipping process with the remaining ladyfingers to create a second layer. Top with the remaining mascarpone cream and smooth the surface beautifully.
Cover the dish tightly with plastic wrap and refrigerate for at least 8 hours, preferably overnight. This allows the cocoa butter in the white chocolate to firm up, creating the signature dense, velvety texture.
Just before serving, use a vegetable peeler to shave the solid block of white chocolate into tight curls over the surface of the tiramisu. Sprinkle evenly with finely chopped roasted pistachios.
Chef's Notes
- Using a high-quality couverture white chocolate with at least 30 percent cocoa butter is crucial. The structural integrity and dense mouthfeel of the final dessert rely entirely on the cocoa butter resetting in the fridge.
- Diluting the espresso soak might seem counterintuitive for tiramisu, but it prevents the harsh, bitter coffee notes from completely masking the delicate milky, nutty profile of the pistachio and white chocolate.
- For the smoothest integration, your mascarpone must be at room temperature before blending with the pistachio paste, while your whipping cream must be very cold to whip properly.
- Always source pure, unsweetened pistachio paste. Sweetened pistachio creams or spreads will make this dessert cloyingly sweet when combined with the white chocolate.
- When folding the whipped cream into the dense mascarpone base, sacrifice the first addition by mixing it in a bit more vigorously to lighten the base, then fold the second addition very gently to keep the air intact.
Storage
Refrigerator: 3 days — Cover tightly with plastic wrap to prevent absorption of savory refrigerator odors. The texture becomes denser each day.
Freezer: 1 month — Freeze in an airtight container without the garnish. Thaw completely in the refrigerator for 24 hours before serving.
