I sifted the powdered milk together with the cocoa.
I put the water together with the sugar in a pan, on the fire, to boil.
I stirred the sugar to melt until it started to boil, then I didn't stir anymore. I let it boil for about 8 minutes, that is, until I got a viscous syrup that drips harder from the spoon.
I took the bowl off the heat and added the soft butter. I stirred until the butter melted. I put the vanilla and poured the syrup over the powdered milk and cocoa.
I mixed vigorously to obtain a homogeneous composition.
I added salt and vanilla. Salt will intensify the sweet taste.
I added the hazelnuts and raisins and put the chocolate in the prepared forms, which I greased with a little oil, to make them easier to remove.
I put them in the fridge. After about an hour, I was able to serve them.
Enjoy your meal !!!