3Add 2 tablespoons of white distilled vinegar to the boiling water.
4Carefully add the eggs to the boiling water.
5Cook for exactly 7 minutes.
6Immediately transfer the eggs to a bowl of ice water to stop the cooking process.
7In a bowl, combine ½ cup of mirin, ½ cup of dark soy sauce, 1 crushed garlic clove, 1 star anise, 1 tablespoon of brown sugar, ½ cup of water, and ½ teaspoon of red chili flakes.
8Mix well.
9Add the peeled eggs to the marinade.
10Cover the bowl with plastic wrap, ensuring the eggs are completely submerged.