Brew the strong espresso first, then leave to cool completely
Add the sugar and egg yolks to a bowl and whisk at high speed until pale yellow, doubled in volume and fluffy.
Gently mix the mascarpone with a rubber spatula in a separate bowl until loosened
Fold in or gently mix the mascarpone into the egg yolk mixture until uniform
Quickly dip each savioardi biscuit into the cold coffee and begin to layer the bottom of the baking dish
Once the first layer has been done, add half the tiramisu cream mixture and spread to cover all the savioardi biscuits
repeat with another layer of lady fingers and the remaining tiramisu cream
leave in the fridge overnight to allow the dessert to set and flavours to develop
dust with cocoa powder using a small sieve just before serving. You can also add grated chocolate on top.