These 3-ingredient nutella cookies are one of the easiest cookies to make! Made with only nutella, flour and eggs, there's no special ingredients required, not to mention they're so delicious for when a sweet tooth craving hits.
Preheat oven to 350°F. In the bowl of a stand mixer fitted with the whisk attachment, or with a hand mixer, beat ½ cup Nutella and egg until well combined, about 1 minute.
Add flour to the bowl and fold it in with a spatula; a ball of dough will start to form.
Wrap the dough in plastic wrap and place it in the fridge for 15 minutes.
Remove the dough from the fridge and roll into balls (12-13 of them). Add balls to parchment-lined baking sheet.
Press down on the balls either with the bottom of a wooden spoon or with your thumb to form a well.
At this point, you can decide to fill the cookies with Nutella before or after baking. If adding Nutella before baking, fill a piping bag with more Nutella fitted with a star tip and pipe Nutella on to the cookies. Top with chopped hazelnuts if desired.
Bake cookies in the oven for 10 minutes. Remove and cool on a cooling rack. If filling cookies with Nutella after baking, pipe Nutella into cookies when slightly cooled. Top with chopped hazelnuts if desired.