So I know that Shoyu typically uses Bonito Flakes but I use dried shrimp as a substitute. I just grind it up in a mortar and pestle. You also need to use Kombu and a good amount of soy sauce. It’s usually made with pork and chicken stock but I’ve made it with chicken only. I use both dark and regular soy sauce.
Just simmered all of the ingredients for most of the day. I’m not someone who enjoys seafood but I actually liked the flavor the dried shrimp added. It’s not your traditional Shoyu broth but it’s close enough.
The next time I make it I want to use Bonito Flakes instead of dried shrimp. But overall, it’s amazing stuff and I love using it for ramen and rice.