Place eggs in a large bowl. Whisk.
Add milk. Whisk to combine.
Add butter. Whisk again until just combined.
Sift in flour and salt. Whisk to make very thin, lump-free batter. Cover and set aside for 10 minutes.
Place a crepe pan or small frying pan over medium heat.
Brush with a little butter.
Pour ¼ cup batter.
Swirl to spread the batter thinly along the bottom of the pan. Cook for 1-2 minutes or until the bottom has turned light brown.
Run a spatula around the edge of the pan to loosen the crepe.
Flip and cook for about one minute or until the other side has turned light brown.
Serve hot.