Preheat the oven to 375 degrees F.
Spread each of the brownies with 1 tablespoon of nutella. Sprinkle each of the brownies with 1 tablespoon chopped hazelnuts. Top the nuts with 1 tablespoon mini chocolate chips. Place the brownies on a baking sheet and bake for 5 to 7 minutes until the chocolate is starting to melt. Transfer the brownies to the refrigerator and let cool until the chocolate hardens, about one hour.
Recipe courtesy of Giada De Laurentiis, 2008