Step 1

Line a baking sheet with a silicone baking mat or parchment paper and preheat the oven to 350°F (177°C).

Step 2

In the bowl of a stand mixer fitted with the paddle attachment whisk together the egg and 3/4 cup Nutella for about 2 minutes until the mixture is glossy.

Step 3

Add flour and beat until combined.

Step 4

Cover bowl with plastic wrap and let rest in the fridge for 10-15 minutes.

Step 5

Using your hands roll about 1.5 Tbsp of dough into balls. This recipe makes about 20-25 cookie balls. Place them on the baking sheet and use your finger or the end of a wooden spoon to make a dent in the center of each cookie.

Step 6

Pipe Nutella into each dent and sprinkle chopped hazelnuts on top.

Step 7

Bake for about 10 minutes. Take the cookies out of the oven and let them cool down on the baking sheet for 10 minutes, then transfer to a cooling rack and let cool completely.