1Creado con IA
Prepare a strong espresso and let it cool down.
In a large bowl, beat the egg yolks with sugar until thick and pale, which may take about 5 minutes.
Add the mascarpone cheese to the egg mixture and beat until smooth.
If using, add rum or brandy to the cooled espresso.
Dip each ladyfinger into the espresso for only about 2 seconds. Letting the ladyfingers soak too long will cause them to fall apart. Place the soaked ladyfingers on the bottom of a 8x8 inch (20x20 cm) dish, breaking them to fit if necessary.
Spread half of the mascarpone mixture over the ladyfingers, then repeat with another layer of espresso dipped ladyfingers.
Spread the remaining mascarpone mixture on top.
Cover and refrigerate the tiramisu for at least 4 hours, but preferably overnight.
Before serving, sift cocoa powder over the top of the tiramisu.