Whisk in the eggs, half of the milk, and the vanilla
Gradually add the other half of the milk, stirring constantly
Whisk in melted butter
Heat a 23cm (9 inch) non-stick skillet over medium heat. When hot, brush with softened butter
Pour 50ml of batter in the skillet. Tilk the skillet to spread the batter evenly in a circle. Wait till completely cooked though, flipping if necessary
Place cooked crepes on a plate covered with tin foil for keeping. You can also use the oven on a low setting to keep them warm