IIt is easy to make, incredibly delicious, and tastes even better after a day or two. This is the perfect dessert for any special occasion or get-together!
Set the bowl over a saucepan of simmering water. Whisk the sugar and egg yolks vigorously until they doubled the size and the mixture is foamy and light.
Let it cool down for a few minutes and then add the mascarpone cheese to the egg yolk mixture one spoonful at a time and gently fold it in using a hand whisk.
Don't use an electric hand mixer to avoid over-whipping the mascarpone cheese. Set it aside and whisk the double cream in a separate bowl until it holds stiff peaks.
In a separate bowl, whip the egg whites with cream of tartar until stiff. Add the egg whites to the mascarpone mixture, and mix with a silicon spatula, from bottom to top.
To build the tiramisu, dip the ladyfingers into the coffee mixture and arrange half of them on the bottom of a 14" x 9.5" (30cm x 20cm) rectangular ceramic or glass dish.