Combine the coffee and grappa or
brandy, dip the sponge fingers into the liquid to coat them evenly, then
arrange them on a small shallow dish or a serving platter, pouring over
any excess liquid.
Sprinkle the raspberries evenly over
the soaked sponge fingers.
In a bowl, whisk together the
mascarpone, egg yolks and icing sugar until smooth and well blended.
In another bowl, whisk the egg whites
until stiff and glossy, then fold together the egg whites and the
mascarpone mixture until well blended.
Spoon the mixture over the sponge
fingers and smooth the surface.
Finely grate the chocolate straight on
to the mixture.