
Pre-heat oven to 350F (180C), grease and flour or line an 8 inch (20 cm) square cake pan with parchment paper.
In a medium bowl add the melted butter, brown sugar, rolled oats, flour, salt and baking soda, mix well.
Place half the mixture, I used a little more than half on the bottom of the prepared cake pan and bake for 10 minutes.
Meanwhile in a small pot add the Nutella and cream, over low heat whisk constantly until smooth. Set aside.
Remove the pan from the oven and immediately sprinkle with chocolate chips, spread the Nutella Cream mixture and then sprinkle with remaining dough. Bake 15-20 minutes or until edges are slightly browned. Remove from oven and let cool to room temperature, the cover with foil and refrigerate for approximately 2 hours or even overnight. Cut into squares and serve. Enjoy!