Steps

1. In a pot, add water 4 cups, cooking sake 1/4 cup, smashed garlic 1 clove, salt 1 tsp, and smashed green scallion ends 1 stalk. Bring to a boil.
   🕒 04:00
2. Once boiling, add chicken thighs 2 pieces. Skim off any foam and simmer for 6-7 minutes. [Key Tip!] If the chicken is exposed above the water, cover it with paper towels to prevent drying and ensure it stays moist. You can also change the position of the chicken halfway through.
   🕒 04:03
3. Remove the chicken and green scallion ends from the pot. Wrap the chicken tightly in plastic wrap and let it cool down in its own residual heat. [Key Tip!] Sealing with plastic wrap prevents drying and keeps the chicken moist and tender.
   🕒 05:58
4. Cut bok choy 1 bunch into 3-4cm lengths. Remove the stems from shiitake mushrooms 2 mushrooms and thinly slice them.
   🕒 06:04
5. Prepare shredded scallions from the white part of the scallions. Soak them in water to remove any harshness. Discard the tough inner core.
   🕒 06:30
6. In a small pot or frying pan, combine all the ingredients for [B] (oyster sauce 1 tsp, soy sauce 1 tsp, sugar 1/2 tsp, sesame oil 1 tsp, potato starch 1 tsp). Mix until the potato starch is dissolved. [Key Tip!] To save a step, mix the liquid seasonings and potato starch together beforehand.
   🕒 09:02
7. Add the cut bok choy and shiitake mushrooms to the pot with the chicken broth and simmer for 1-2 minutes.
   🕒 08:41
8. Taste the soup and adjust the seasoning with a splash of soy sauce.
   🕒 10:43
9. Gently pour in the lightly beaten egg 1 and cook until it forms soft curds. Once the egg is added, avoid stirring immediately and let it set.
   🕒 10:59
10. Add about 2 ladles (approx. 100ml) of the chicken broth to the pre-mixed [B] seasoning mixture and stir. Bring to a simmer.
    🕒 09:59
11. Continue to simmer until the sauce thickens.
    🕒 10:17
12. Slice the cooled chicken and arrange it on a plate.
    🕒 11:28
13. Pour the warm Chinese sauce over the sliced chicken.
    🕒 12:35
14. Garnish with the soaked shredded scallions, coarse black pepper, and chili oil, if desired.
    🕒 12:44
15. Ladle the chicken egg soup into bowls.
    🕒 12:20