Add the butter to a small microwaveable container and melt in the microwave at 10 second increments. Once melted, set the butter aside to cool.
To a large bowl, add the flour, salt and sugar then use a whisk to combine. Add in the eggs and whisk until smooth.
Once the mixture is smooth, continue to mix for another 1 - 2 minutes to ensure you work the gluten. This will increase elasticity and reduce the chances of the crepes tearing when you are turning them.
Mix in the melted butter then mix in the milk and combine well until you have a loose batter then set the bowl aside.
Place a non-stick pan that measures around 24cm/9 inch on a low - medium heat then lightly brush the pan with a little oil.
Once the pan has warmed up, lift the pan from the heat and pour in ¼ measuring cup of the batter into the pan. Working quickly, tilt and swirl the pan to spread the batter out before the it sets.
Cook for around 1 - 2 minutes until the edges start to crisp then use a spatula and carefully flip the crepe. Cook on the other side for another 1 minute then lift the crepe out the pan and transfer to a plate.
Repeat the process to use up all the batter which should make around 10 crepes. As you make each crepe, you can stack them on the plate. Also keep an eye on the temperature. If the crepes are browning too quickly then slightly reduce the heat.Once all the crepes are cooked, serve with your favourite filling and enjoy.