Kinder bueno cake

Pour the mixture into a greased and floured mould and bake at 170°C for 30 to 35 minutes.
Once cooked, let cool and remove from the pan.
In the bowl, put the kinder buenno and white chocolate in pieces, then 6 seconds at turbo speed, then 10 seconds at speed 10.
Add the crème fraîche and set for 5 minutes at 50° on speed 2.
Let cool then pour over the top of the cake and spread with a spatula.
Put the nutella in a piping bag, make a tiny hole at the end of the bag and draw circles.
Then, with a knife, draw lines from the center outwards.
Garnish with pieces of kinder bueno and refrigerate until ready to serve.