Start by making coffee; we will need it cold.To the coffee, add the sugar and the liqueur of your choice.Prepare the cream, start by separating the egg yolk from the egg white.
Add half the sugar to the egg yolk and start to whisk it until you get a light and fluffy cream then, slowly add the mascarpone. ( lower the speed of the beater).
To assemble the tiramisu, in a baking pan spread 2 generous spoons of our cream. Dip the ladyfingers in the coffee & sherry and start distributing them evenly onto our bed of cream.