In a bowl, mix the crushed cookies with melted ghee butter until well combined.

Press the mixture firmly into the bottom of a baking dish or tart pan to form the base. Set aside.

In a separate bowl, whisk together the condensed milk and cocoa powder until smooth and well combined.

Pour this mixture over the prepared cookie base, spreading it evenly.

Heat the heavy cream (33%) in a saucepan over medium heat until warm (do not boil).

Remove from heat and add the chopped dark chocolate, stirring until the chocolate is completely melted and the mixture is smooth.

Pour the chocolate-cream mixture over the condensed milk layer.

Sprinkle the chopped hazelnuts on top for added crunch and flavor.

Place the dessert in the fridge for at least 4 hours or until set.

Slice, serve, and enjoy your delicious no-bake chocolate hazelnut treat!