Heat lard and sesame oil in a frying pan, add chopped Japanese leek, and briefly stir-fry for about 10 seconds.
Add the remaining ingredients in the boiling water from Step 1, bring to a boil again, then turn off the heat.
Transfer the soup into a bowl. Add freshly boiled noodles, and scatter the leeks with the oil over the noodles. Top with toppings you like, and it's done.
Story Behind this Recipe
I love noodles, and buying fresh noodles and making my own soup costs less than buying instant noodles. It's more delicious too, so I created this recipe. I'm from Kansai area, so I prefer light soup better.
During Step 3, after bringing the soup to boil again, if you keep it boiling, it will lose its fragrance. Adjusting the flavour with salt instead of soy sauce makes the soup better.