Before starting this Tiramisu Christmas Log recipe, make sure you have organised all the necessary ingredients for the mascarpone cream. Separate the eggs and place the yolks in the stand mixer recipient. Cook the sugar and water until the temperature reaches 121°C. I recommend using a digital thermometer for this operation. Pour the cooked sugar on the egg yolks, beating on low speed. Increase the mixing speed. Beat until the preparation is a pale colour and has doubled in volume. ...