Preheat the oven to 180C/350F/Gas 4.
Grease and line 8 × 8-inch square baking pan with a silver foil and keep aside.
In a mixing bowl, add flour, Nutella and eggs. Then stir well until thoroughly combined with a spoon.
Transfer the batter into the prepared pan and smooth the top with the help of a spatula.
Bake in the oven @180C for 25-30 times or until you see some small cracks on the top or toothpick inserted comes out almost clean with few crumbs.
Remove the pan from the oven and allow it to cool completely before slicing into pieces.
When it cools down, slice the brownies into pieces and enjoy!