Heat Dashi to a boil, and add salt, Soy Sauce, Mirin, Sake. Cover and keep it warm.

Cook your favorites toppings.

Cook dried Soba noodles according to the package. Add cooked Soba to the hot soup and let it simmer for a minute.

Divide noodles and soup into bowls, place cooked toppings on top, and sprinkle on the chopped green onion. Add Shichimi if you like.