Add the oats, cocoa powder and salt in a large bowl.
Roughly chop the Pecan nuts and add them to the bowl as well. Mix well.
Melt the coconut oil and add it to the oats, then add the maple syrup and vanilla extract.
With a wooden spoon or spatula mix well all the ingredients, then spread them on a baking sheet covered with parchment paper.
Compact them and press them well with a spoon. They should cover the whole surface of the baking sheet, so the layer shouldn't be too thick. but also not too thin otherwise you won't get clumps.
Bake in the pre-heated oven for 20-25 minutes.
Let it cool completely, then transfer to a jar with a spoon.
Notes
If you don't like salted chocolate, I suggest you decrease the amount of salt in the recipe to ¼ tsp.Store the granola in an airtight container in a cool and dry place.