Add egg to bowl and whisk until it is mixed thoroughly.
Add sugar and salt and mix in.
Heat a skillet on medium-low heat until pan is hot. Then brush on a thin layer of oil making sure to coat the entire bottom of the pan's surface.
Pour egg mixture onto pan and quickly swirl across the bottom of the pan to make sure the egg is spread evenly in a thin layer.
Cook for around 1 minute or until the egg is no longer runny. Then, using a spatula or chopsticks, carefully flip the egg and cook the other side for an additional 20 seconds. If you are getting brown spots on your egg, your pan is too hot. I would try removing from the heat and trying again. As the crepes are thin, they are somewhat finicky and require the pan to be just the right temperature.
Remove the egg from heat and let cool on plate.
Once cool, roll the egg crepe and slice the roll into thin strips.