Line two baking sheets with silicone baking mats. Preheat oven to 350ºF.
In a large bowl, add Nutella, almond flour/meal, egg and baking powder. Use a large wooden spoon to stir until everything is thoroughly mixed. If using chocolate chips, stir in at this point.
Using a 1.5 tbsp cookie scooper, scoop out cookie dough and place onto baking mats, spacing 2 inches apart. Press down slightly onto the cookie balls so that the balls flatten into thick round discs.
Bake for about 12 minutes. Cookie surface should look dry but will not be set. Don't worry that they may still feel really soft. Let cookies cool on baking sheets. As they cool, they will firm up. Remove cookies once they are cooled.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.