Transfer the hazelnuts into a blender together with the sugar and the flour. Now blend it into a fine powder.
Then add the butter, the flaky salt and the melted white chocolate. Now blend it for another minute till it’s a firm dough.
Then transfer it on a tray that’s lined with a silicon sheet and spread it. Now bake it at 160 °C for around 25 minutes till golden brown. Mix it every 5 minutes to create a beautiful even crumble.Â
Once golden let it cool down completely and keep it dry and covered for later.
