Prepare the marinade by combining soy sauce, water, honey, onion, green onion, garlic, and chili pepper in a mixing bowl.

Boil a pot of water with salt and vinegar, then gently add the eggs. Cook for 6-10 minutes depending on desired doneness.

Prepare an ice water bath, and transfer cooked eggs into it for 5-10 minutes to halt cooking.

Peel the cooled eggs, starting from the wider end for easier handling.

Marinate the peeled eggs in the prepared marinade for at least 6 hours or overnight.

Serve cold over rice or noodles, garnished with green onions and sesame seeds.