01 - In a large mixing bowl, whisk together flour, eggs, milk, melted butter, sugar, salt, and vanilla extract until smooth. Allow batter to rest at room temperature for 10 minutes.
02 - Heat a nonstick 9-inch skillet or crepe pan over medium heat and lightly brush with melted butter.
03 - Pour approximately 1/4 cup batter into the pan, swirling to evenly coat the bottom. Cook for 1 to 2 minutes until edges lift and underside is lightly golden.
04 - Flip crepe using a spatula and cook for an additional 30 seconds to 1 minute. Transfer to a plate and cover loosely to retain warmth.
05 - Repeat with remaining batter, greasing the pan as necessary.
06 - Spread 1 to 2 tablespoons Nutella over half of each crepe. Fold in half, then fold again into quarters or roll up as preferred.
07 - Dust crepes with powdered sugar and serve warm. Garnish with fresh fruit or nuts if desired.