Break the eggs into a bowl.
Add water, hondashi, garlic powder, soy sauce, and salt & pepper. Beat them together. (Makes sure you minimize the air incorporated into the mixture!)
Add scallions and mix.
Heat your pan on medium heat and add oil to thinly coat the surface.
Pour 1/3 of the egg mixture into the pan, evenly cover the bottom, and cook till it's not runny on top. (I usually stir a little bit)
Roll the egg from one end to another using a spatula. Make sure you roll it tight by pressing the air out with a spatula. (If you're using a round pan, I suggest you fold the sides of the egg before rolling)
Pour 1/2 of the rest of the egg and fold. Repeat.
It'll look like this!
Once cooked, cut it in small pieces. Tada!