Undaunted, we tried to get some broth recipes anyway, placing calls to some of Hawaii’s most popular noodle shops. No surprise, we weren’t able to finagle a broth recipe from any of them.

We do, however, have a tasty homemade broth recipe—straight from the pages of the new Hawaii food tome, Kau Kau: Cuisine and Culture in the Hawaiian Islands. The book, by Hawaii writer Arnold Hiura, is stuffed with the histories, stories and recipes of our favorite Hawaii foods.
http://www.bookshawaii.net/kau-kau-hawaii.html

We’ve previously featured Kau Kau recipes for Hawaiian-style barbecue (teriyaki) sauce and plate-lunch-style macaroni salad.

Here's Kau Kau’s take on an Island-style saimin broth using dried ebi. Not a shrimp devotee? Try chicken bones or pork instead for a rich, flavorful broth.