Tiramisu would be lovely....
Basically a tiramisu is an egg and mascarpone cheese "pudding", sponge cake (lady fingers) soaked in amaretto (or brandy) coffee, and maybe some chocolate...
You could mix cheesecake, chocolate, and coffee (heavier on the cheesecake and coffee than chocolate) and have Geoff mix in some Brandy, that might be close. I'm not sure how you would get the "eggy" taste or cake taste tho as a tiramisu shouldn't be made with cream cheese, that's just sacrilegious... I make a mean tiramisu and there's nothing like it in this world...