Noun
tonkotsu (uncountable)
A Japanese broth made from pork marrow, typically served with ramen.
It consists of thick, straight-ish noodles served in a soy flavored pork broth similar to tonkotsu. Source: Internet
Jinya Ramen Bar serves tonkotsu ramen in the United States and Canada. Source: Internet
It has a rich, milky, pork-bone tonkotsu broth and rather thin, non-curly and resilient noodles. Source: Internet
If you're not into that, no worries, the menu is full of all the standard ramen options as well, and if you like your ramen spicy, they even have a tonkotsu broth made with habanero sauce. Source: Internet
As far as the broth, Karai’s traditional tonkotsu broth is made daily from pork bones that are simmered for 24 to 48 hours. Source: Internet
Ten’s tonkotsu is not the hearty style from Hakata, with broth that’s opaque from boiling pork bones for hours, collagen and marrow turning it milky-creamy. Source: Internet