Air Frying the Eggs:

1. To your air fryer, add your eggs and make sure they all are touching the bottom of the air fryer and aren’t stacked.
2. Heat your air fryer to 300 F (149 C) and air fry the egg(s) for 8 minutes.
3. When it’s done air-frying, immediately submerge your egg(s) into a bowl filled with water and ice cubes before peeling. Tip: for easier peeling, submerge your eggs into the cold water while peeling. Set the eggs aside.
4. To a quart-sized plastic bag or deep container (must be able to fit the eggs completely), mix the soy sauce, mirin, water, and sugar.
5. Place the peeled eggs into the bag or container, ensuring they are fully submerged. Seal the bag or cover the container and refrigerate for 4 hours to overnight. The longer they sit in the marinade, the more the flavors will penetrate the eggs. I recommend eating the eggs within 2 days.
6. Remove the eggs from the marinade and slice them in half just before serving to reveal the yolk. Use as a topping for ramen, rice bowls, or enjoy them as a snack.

Boiling the Eggs:

1.  Bring a pot with water filled enough to submerge the egg(s) to a simmer.
2. Carefully drop in your eggs to the water and allow to simmer for 6-6 1/2 minutes. You can go for 30 seconds to a minute longer depending on how cooked you want the egg yolks to be.
3. When it’s done air-frying, immediately submerge your egg(s) into a bowl filled with water and ice cubes before peeling. Tip: for easier peeling, submerge your eggs into the cold water while peeling. Set the eggs aside.
4. To a quart-sized plastic bag or deep container (must be able to fit the eggs completely), mix the soy sauce, mirin, water, and sugar.
5. Place the peeled eggs into the bag or container, ensuring they are fully submerged. Seal the bag or cover the container and refrigerate for 4 hours to overnight. The longer they sit in the marinade, the more the flavors will penetrate the eggs. I recommend eating the eggs within 2 days.
6. Remove the eggs from the marinade and slice them in half just before serving to reveal the yolk. Use as a topping for ramen, rice bowls, or enjoy them as a snack.