First, prepare the coffee and let it cool. If desired, you can sweeten it with one teaspoon of sugar. Then prepare a bowl with the egg yolks and get ready to whip them.
In a small saucepan, combine water and sugar and heat over low heat, stirring occasionally with a wooden spoon. Use a kitchen thermometer to monitor the temperature of the syrup, bringing it to 121°C.
When the sugar syrup reaches around 115°C, begin whipping the egg yolks.
Once the syrup reaches 121°C, slowly pour it into the whipped egg yolks while continuing to whip until thick and foamy and cooled.
At this point, stir in the mascarpone cheese until smooth. Refrigerate the cream until ready for use.
Quickly soak the ladyfinger biscuits in the coffee and arrange on a tray, allowing them to absorb the coffee for 5 minutes until softened.
Now start layering the tiramisu. Spread a thin layer of mascarpone cream on the bottom of a baking dish. I used a 20x30 cm baking dish. Add a layer of Savoiardi cookies or Ladyfingers, then a layer of mascarpone cream and repeat the layers until using up all the ingredients, ending with the mascarpone cream.
Cover and refrigerate your tiramisu for at least 3 hours. Just before serving, generously dust the top with unsweetened cocoa powder.
Your tiramisu made with pasteurized eggs is ready to enjoy!