Shell the hazelnuts (longest step…) and place them on a baking sheet covered with parchment paper.
Preheat your oven to 160°C then brown the hazelnuts for 10 minutes.
Take them out and let them cool. Personally, I stole a few at that time…
To remove most of the little skin that covers the hazelnuts, rub them between your hands or in a cloth then place them in the bowl of your Blender. It's okay if there's still some skin left.
Then mix gently, gradually increasing the speed. Stop mixing and let the mixture fall, which will tend to stick to the walls of the mixer.
Repeat the operation until you obtain a homogeneous dough. Personally, I like it when the dough still contains a few small grains that are crispy...
