Prepare the baking pan: Line an 8x8 inch baking pan with parchment paper, leaving an overhang on two sides. This will make it easy to lift the brownies out of the pan once they've cooled. If you don't have parchment paper, grease the pan thoroughly with butter or cooking spray.

Combine Nutella and eggs: In a mixing bowl, combine the Nutella and eggs. Use a spatula or wooden spoon to mix until smooth and well combined. Ensure there are no streaks of egg yolk remaining.

Add the flour: Gradually add the flour to the Nutella and egg mixture. Gently fold it in until just combined. Be careful not to overmix, as this can result in tough brownies. The batter should be thick and fudgy.

Pour into the pan: Pour the brownie batter into the prepared baking pan and spread it evenly with a spatula.

Bake: Bake for 20-25 minutes, or until a toothpick inserted into the center comes out with moist crumbs clinging to it – that's the sweet spot! Keep in mind that every oven is different, so start checking for doneness around the 20-minute mark.

Cool: Let the brownies cool completely in the pan after removing them from the oven. This is essential for clean cuts and prevents crumbling.

Cut and serve: Time to enjoy! Once completely cooled, simply lift the brownies out of the pan using that handy parchment paper overhang you created earlier. Cut into squares and serve – easy as that!.