Soak 2 cups of soybeans in water for 4-5 hours. Let sit.
After this has been soaking, drain the water out from the soybeans and add 1 tsp salt.
Transfer the soybeans to a pot with water and just cover the soybeans to the top (around 1 3/4 cups).
As soon as this boils, turn off and cover the pot for 10 minutes.
Rinse the soybeans with cold water and set aside.
In the meantime, crack 1 egg and separate the egg yolk and whites. Mix a few drops of water with the cracked egg yolk and cook each separately.
Julienne cut the egg white and egg yolk and set aside as a garnish. An alternative to this julienne cut style is soft boiling an egg without separating the yolk and whites and cutting the egg in half and adding that on top of the noodles once complete.
Julienne cut 1/2 cucumber and set aside as a garnish.
Next, boil water to cook the noodles for a few minutes.
Rinse the noodles under cold water to stop from cooking more. Remember this is a cold dish so the colder the better!
Now let's finish the actual soy milk "broth" by placing the soybeans in a blender and covering loosely with water.
Add in 1 1/2-2 tbsp of peanut butter (depending on which brand this can vary). Add salt and blend.
Test the consistency as it shouldn't be "soup" it should be a thicker "smoothie" texture. You can check out the social video above to see what the consistency should be like as you pour the soy milk into the bowl of noodles.