It takes 60 hours to make this creamy Tonkotsu (pork bone) soup.
Tonkotsu ("pork bone") ramen is usually white. It is similar to the Chinese baitang (白湯) and is a thick broth made with crushed pork bones that have been boiled for hours. It is a specialty of Kyūshū and is often served with beni shoga (pickled ginger).
Credit: Wikipedia
"Hakata Shouten"
2-14-6 Hitotsuya, Adachi-ku, Tokyo