
Line a cookie sheet with Parchment paper.
On low heat place the dark chocolate (broken into pieces) in a small-medium bowl over a pot of water (make sure bowl does not touch the water). Melt until smooth, stirring often with a fork or whisk. Spread evenly on the parchment paper lined cookie sheet. Let cool and harden slightly.
On low heat place the dark chocolate, milk chocolate, white chocolate and Nutella in a medium bowl over a pot of water (make sure bowl does not touch the water). Melt until smooth, stirring often with a fork or whisk to combine.
Spread evenly over the 1st layer. Immediately sprinkle with hazelnuts or almonds. Place in fridge until firm. Break into pieces and Enjoy!