This is a very classic Estonian dessert, not classic in terms of like centuries of peasants eating it, but classic in terms of a couple of generations (dating back to Soviet times still) have grown up on it. I'm pretty sure it has something to do with the general lack of decent sweets in the stores and the abundance of butter-biscuits, cocoa and hard-marmalade. I'm pretty sure everyone’s mom has made it (again, I don't know what's up with these 'everyone’s mom made it' recipes lately:). And everyone has a different way of making it and adds different things. Sort of like potato salad. That one's also completely different in different households.
Behold, my childhood favorite 'cake':
The Spotted Dog:
400 g cottage cheese paste
2 x 70 g dark chocolate (75%)
1/2 pack of Digestive biscuits
1 pack (~150 g) of marmalade-candy (hard marmalade, the type you can cut with a knife)
50 – 75g butter
Crush the cookies (not to oblivion, leave some chunks) and cut the marmalade candy into smaller chunks. Melt the chocolate and the butter and add the cottage cheese paste. Mix. Add marmalade and dried fruit to the cookies and mix (if you mix the marmalade into the cookies when they're dry, they'll spread more evenly). Then add the chocolate-cottage cheese mix. Use ceram-wrap; a plastic bag or tinfoil to make a 'sausage' (about 5 cm in diameter) and refrigerate for at least 1,5 hrs before serving.
Besides marmalade and dried fruit you can use anything as the filling. Crushed caramel, nuts (I don't like it, as the cake has this nice smooth texture and I feel hard pieces would disrupt the general smoothness), marshmallows, chocolate etc. Or you might skip the chocolate and go for 150 - 200 g butter + sugar + cocoa powder - this is how we used to make it, the color is much darker then.
I also found that using the dark chocolate made it a bit too strong. So next time I might go for one dark and one milk-chocolate.