Sift dry ingredients together of the 1st list. In a big bowl beat sugar, oil and butter till it's creamy add one egg at a time and beat well till all done add oil and cocoa mixture and fold in well then add dry ingredients and mix well.
Pour on a greased baking tray, bake on 170°C. When cake is done let it cool a little then cut twice horizontally,
let it cool down then on 1 round slice spread nutella and place the other slice spread nutella on it and place the last slice.

Sprinkle expresso on the entire cake..
Then on the cake top apply nutella and place some walnuts and sprinkle flake choco crumbs.

Voila!!