Add the milk and eggs to a jug / mixing bowl and whisk to combine Add the melted butter and whisk.
Place the flour in a large mixing bowl and add around 1 cup of the wet ingredient mixture. Whisk gently to form a smooth paste. (Be careful not to overmix, this stage should only take a few seconds)
Add the remaining wet ingredient mixture to the flour and whisk to form a smooth and runny batter.
Cover and allow the batter to rest for at least 30 min.
Pre heat a 10" non stick frying pan over medium heat and grease with a little butter (or oil if preferred).
Pour ¼ cup of batter into the centre of the frying pan. Lift the pan and swirl to allow the batter to spread as far as possible. Work quickly and make sure the batter is as evenly spread as posible.
Once the base of the pan is covered in batter, replace the pan on the heat and cook until the surface of the crepe is set and the edges are starting to brown (around 40 seconds).
Carefully flip, using a spatula, and cook for a further 30 seconds.
Remove from the pan and place on a plate. (stack crepes on top of each other)
Repeat with the rest of the mixture, making sure to butter the pan and gently whisk the mixture before making each crepe.