Tiramisu Classic Mascarpone

In a shallow bowl, combine the cooled strong espresso with the Marsala wine (if using). Stir gently to mix. Set aside. This will be your dipping liquid for the ladyfingers.

In a heatproof bowl set over a saucepan of simmering water (bain-marie), whisk the egg yolks and granulated sugar continuously. Whisk until the mixture is pale yellow, thick, and has increased significantly in volume, reaching a temperature of about 160°F (71°C). This process typically takes about 8-10 minutes. Remove from heat and let it cool slightly.

Once the egg yolk mixture is lukewarm, gently fold in the chilled mascarpone cheese. Use a spatula or whisk to combine until just smooth and creamy. Be careful not to overmix, as mascarpone can curdle if overworked. The cream should be light and airy.

Quickly dip each ladyfinger into the coffee mixture, ensuring it is soaked but not saturated and soggy. Arrange a single layer of the dipped ladyfingers in the bottom of an 8x8 inch (20x20 cm) square dish or a similar sized rectangular dish. Break ladyfingers if necessary to fit snugly.

Spread half of the mascarpone cream mixture evenly over the layer of ladyfingers. Use an offset spatula or the back of a spoon to create a smooth, consistent layer. Ensure the cream reaches all edges of the dish.

Repeat with another layer of coffee-dipped ladyfingers, followed by the remaining mascarpone cream. Smooth the top layer. Cover the dish with plastic wrap and refrigerate for at least 4-6 hours, or preferably overnight, to allow the flavors to meld and the tiramisu to set properly.

Just before serving, remove the tiramisu from the refrigerator. Sift a generous amount of unsweetened cocoa powder evenly over the top. Use a sharp knife to cut into individual portions and serve immediately. Enjoy this classic Italian delight!