Tiramisu is a delicate, creamy dessert of soft biscuits, a silky cream and whipped cream dusted with cocoa. Although coffee is not a favourite in our kitchen, for a proper tiramisu we stand by coffee and rum; we use cocoa instead of coffee only in the children's version.
We used to make it with a powdered cream mix, but through trial and error we arrived at a combination of ingredients for a homemade cream that is much better than the shop-bought kind, and it is really easy to make. The dessert has just the right balance of sweet and tangy and is nicely moist, and so far everyone who has tried it has liked it.
Whisk the egg whites to stiff peaks and gently fold them into the yolk cream with a spoon.
Spread about half the cream over the layer of biscuits, top with a second layer of dipped biscuits and spread the rest of the cream on top.