Mix the first mentioned ingredients (margarine to 5 tablespoons milk) together and divide the dough into 3 portions.
Stir cinnamon into the first portion of dough, cocoa and milk into the second portion of dough, and nuts into the third portion of dough. Pour the three types of dough into a greased and floured loaf pan one after the other.
Now bake for 50-55 minutes at 180 degrees top / bottom heat. Let the cake cool and dust with powdered sugar before serving.