In a large bowl, whisk together the flour, eggs, milk, melted butter, salt, and sugar (if using). You can also blend the ingredients together for a super smooth batter.
Let the batter rest in the refrigerator for at least 30 minutes (or up to a few hours). This helps relax the gluten in the flour, making your crepes even more tender.
Cook the crepes:
Heat your non-stick skillet over medium-low heat. Lightly grease with butter or cooking spray.
Pour about ¼ cup of batter into the center of the skillet. Quickly swirl the pan to distribute the batter in a thin, even layer.
Cook for about 1-2 minutes per side, or until lightly golden and the edges start to lift.
Carefully flip the crepe and cook for another minute.
Repeat with the remaining batter, stacking the cooked crepes on a plate
Notes
First crepe flop: The first crepe is often a test run. Adjust the heat as needed to get that perfect golden color.
Keep them warm: If you're serving a crowd, keep cooked crepes warm in a low-temperature oven.