To Prep
In a bowl, mix the eggs, lime juice, fish sauce, water and rice flour. Beat the mixture with a fork until frothy. You can break the lumps with your fingers.
To Cook
Heat the oil in a wok on medium-high until it is smoking lightly. Pour in all the egg from 30cm high into the oil and it will puff up immediately. Fry for 20 secs.
Flip the omelette and fry again for 20 secs. Remove and serve immediately.
