In a large mixing bowl, add the flour, sugar, salt, milk, eggs, melted butter, and vanilla extract. Thoroughly, mix the ingredients together to form a thin batter.
Place a sieve over a separate mixing bowl. Pour the crepe batter through the sieve to remove any clumps of unmixed flour and/or ingredients.
Cover the bowl with plastic wrap and refrigerate for 1-2 hours or overnight.
Give the chilled crepe batter a good mix. In a large nonstick pan (I used a 12 inch pan) under medium heat, melt some butter.
Using a ladle, scoop up some of the batter and pour into the center of the pan. Working quickly, rotate the pan so that the batter forms a thin layer.
Place the pan back over the heat and cook the crepe. It is ready to flip when the center of the crepe starts to bubble and the edges start to pull away from the pan, about 45-60 seconds. Use a spatula to flip the crepe and cook other side for 30-60 seconds.
Transfer fully cooked crepe to a cooling rack to cool before carefully transferring to a large plate. Continue this process with the remaining batter for a total of (7) crepes.
Working with one crepe at a time, place down on a clean surface. Fold the outer edges of the crepe in towards the center leaving a gap between the folds.
Add a large scoop (about 2 to 3 tablespoons) of Nutella into the gap between the folds. Evenly spread out the Nutella across the center section of the crepe.
Starting at the end of the crepe closest to you, roll the crepe onto itself to form a log shape. Transfer to a plate and continue with the remaining crepes and Nutella.
Add a dusting of powdered sugar over the Nutella crepes before serving (optional). Serve immediately. Enjoy!