In a mixing bowl, whisk together the flour and salt. Add the eggs and mix until combined.

Gradually add the milk and melted butter, whisking until the batter is smooth. Let it rest for 30 minutes.

Heat a non-stick skillet over medium heat and lightly grease it with butter.

Pour a ladleful of batter into the skillet, swirling to coat the bottom evenly. Cook for 1-2 minutes until the edges lift and the bottom is lightly golden.

Flip the crepe and cook for another minute. Remove and keep warm. Repeat with the remaining batter.

Fill each crepe with your desired filling options, fold or roll them, and serve warm.