Whip the Creamy Base: In a large bowl, use an electric mixer to beat the cold egg yolks and powdered sugar. Mix on medium-high speed for 2-3 minutes until the mixture is light, creamy, and the sugar has fully dissolved. This creates a smooth foundation for your dessert.
Combine with Mascarpone: Gently add the cold mascarpone cheese to the egg yolk mixture. Mix on medium speed for just about 1 minute until everything is smoothly combined and creamy. Be careful not to overmix, as mascarpone can curdle easily.
Prepare Ladyfingers: Quickly dip both sides of each ladyfinger into the cooled espresso for only 1-2 seconds. You want them moistened but not soggy. Arrange 9-12 dipped ladyfingers in a single layer at the bottom of a 9x7x3-inch or 8x8x3-inch baking dish.
First Layer of Cream: Spread about one-third of your creamy mascarpone mixture evenly over the ladyfingers.
Build Your Layers: Repeat steps 3 and 4 twice more, creating three layers total: ladyfingers + cream, ladyfingers + cream, ladyfingers + cream. Ensure the final layer of cream is smooth and even.
Chill for Perfection: Cover the dish tightly with plastic wrap. Refrigerate for at least 8-12 hours, or ideally, overnight. This crucial chilling time allows the flavors to meld beautifully and the tiramisu to set.
Serve with a Dusting: Just before serving, lightly dust the top with unsweetened cocoa powder. Slice and enjoy this delightful, authentic Italian treat!
Notes
Nutrition Information (per serving): Calories: 306, Total Carbs: 21g, Net Carbs: 20g, Fats: 22g, Protein: 6g.