It's usually cooked in five minutes of steaming, and the whole thing is very tender, so if you prefer an older honeycomb egg, you can steam it for more than seven minutes.
Here's a simple and tasty tutorial:
Punch three eggs into a bowl, use chopsticks to beat them quickly, add a spoonful of soy sauce and a spoonful of cooking oil, and continue to mix well;
Add 180 grams of water (the ratio of water to water is that of an egg plus an eggshell), stir into a smooth egg mixture, and then steam for five minutes in a water boiler before you can get out of the pot.
Finally, drizzle with soy sauce and cooking oil to finish!
Photo from the Internet