Preheat the oven to 350°F and line a baking tray with parchment paper.
Add the hazelnuts to the baking tray and cook for 12-15 minutes. Roasting the hazelnuts helps to loosen the skins.
Remove the hazelnuts from the oven and let them cool for a bit.
Put the hazelnuts on a large kitchen towel and using your hands, roll the nuts around to remove the skins. Try to get off as much of the skin as possible so you get a smoother Nutella.
Add the hazelnuts to a high speed blender or food processor (a blender will work better) and blend until the hazelnuts become the consistency of a butter. This may take some time (up to 10 minutes) and you might need to scrape down the sides of the blender a few times in the process.
Add the vanilla extract, maple syrup, and salt to the blender and blend until smooth.
Heat the chocolate chips up in the microwave in intervals of 30 seconds and mix in between until it becomes completely melted
Slowly add the melted chocolate to the blender and blend until smooth. Transfer the Nutella to an airtight container or jar and store in the refrigerator or on your counter for up to 2 weeks.