Soak the soybeans thoroughly and then boil them.
Blend the boiled soybeans smoothly to make a soybean soup base.
Boil the wheat noodles and rinse in cold water.
Place the noodles in a bowl and pour the soybean soup over them.
Season with soy sauce and a pinch of salt to taste.
Garnish with julienned cucumber, seaweed flakes, and boiled egg.