Coffee & Chocolate bars - "Masaliisa"

During the 80's, there was no party where this confection wasn't served. Or was there? This pastry is, Mokkapalat or Masaliisa, to my mind, the most iconic pastry of that decade. I forgot this for years and years, until my husband mentioned this once. Name "Mokkapalat" is more common with Finns, but In Pori area they call it "Masaliisa". Even I'm not from that area I found the name so amusing, I startet to use it instead of "Mokkapalat"

To me, the best part of the pastry is the frosting, and there never enough it. So why not put it in to two layers? I kind og a made cake using this bar, and this way I managed to get more frosting into my piece of bar. 

Coffee & Chocolate bars "Masaliisa"
For 4-6 person
For the cake
3 dl sugar
5 dl all-purpose flour
1 1/2 tsp baking powder
1 tsp salt
2 1/2 dl water
200 g butter
4 tbsp unsweetened cocoa powder
1 dl strong coffee (with milk)
2 eggs
For the frosting
50 g butter
500 g icing sugar
5 tbsp strong coffee
1-1½ tbsp unsweetened cocoa powder

Mix all dry ingredients together (sugar, flour and baking powder)  Put butter, water and cocoa powder intoa a pan and bring to a boil. Combine the flour mixture and cocoa mixture. Addt 1 dl (milk) coffee, and let cool. When the dough has cool enough, stir in the eggs. Spread on cookie sheet and bake at 200 degrees for 20 minutes. Let cool. Then split the cake in half.

For the frosting, melt the butter in a saucepan and mix with other ingredients. Mix until smooth. If the mixture seems too stiff add a little e.g. milk, and if it seems too loose, you can add more powdered sugar. Keep the mixture warm for the frosting. Spread the frosting evenly over the both cake pieces. Lift the other part of the on cake over the other.
Sprinkle with nonpareil, and just Enjoy!