Add 1/2 paper cup of white sugar, 1 paper cup of cooking wine, and 2 tbsp of Hondashi to a pot, and turn off the heat once it boils.

Cold Buckwheat Noodles (Naeng-momil)
A refreshing cold buckwheat noodle recipe that achieves a restaurant-quality taste at home simply, without using tsuyu.
What You'll Need
Instructions
Add 5g of katsuobushi, 1 paper cup of dark soy sauce, and 5 cups of water to the boiled broth, then strain through a sieve to remove debris.
Move the finished broth to the freezer to keep it cool.
Julienne the cucumber, grate the radish, and prepare the radish juice and grated radish.
Cut the egg garnish, green onion, and red chili into appropriate sizes to prepare as toppings.
Boil the buckwheat noodles in boiling water and drain well.
Place the boiled buckwheat noodles in a bowl and pour the pre-made cold buckwheat noodle broth over them.
Finish by beautifully arranging the prepared cucumber, radish juice, grated radish, egg garnish, green onion, and red chili toppings.