this recipe from a Hawaiian blog also uses cornstarch, but might be a better gravy. Could always substitute a preferred thickener.
also adding a recipe from my favourite Japanese recipe site, using a mushroom gravy
it looks like a lot of home cooks in Hawaii use the McCormick gravy powder. (as do a lot of home cooks making Poutine) . I have a ton of McCormick powders from a Silent Auction purchase a few months ago, but they’re too salty for our household.
discussion on Loco Moco on Reddit
