Add the Nutella, flour, and egg to a large bowl. Mix until well combined. The mixture will form a thick dough but should be moist enough to roll into balls. Using your hands roll about 2 tablespoons of dough into balls. Place cookies on your baking sheet and flatten them slightly with your fingertips or the bottom of a glass.
1 Preheat oven to 180C (350F). 2. In a large bowl, mix Nutella and one egg until combined. Gradually add flour and mix until incorporated 3. Roll into 12-14 balls, place on a baking tray lined with parchment paper and flatten them slightly.
In a large bowl, mix Nutella and one egg until combined. Gradually add flour and mix until incorporated 3. Roll into 12-14 balls, place on a baking tray lined with parchment paper and flatten them slightly. 4. Bake for 8-10 minutes.
Sprinkle coarse sea salt on top. This adds a little bit of crunchy texture and balances the sweetness of the Nutella. Add unsweetened cocoa powder to the cookie dough.