Okinawa Shoyu Pork
It's best to use pork belly, but pork tenderloin or boneless pork short ribs are also great.
You can substitute 1/2 cup water for katsuo dashi. Katsuo dashi is a fish stock made from water and bonito flakes. In a small pot, boil 1-2 c of water and about 1/2 c bonito flakes for a few minutes. Pour into a bowl, straining the bonito flakes out of the liquid so you have only stock.
Reynolds® Aluminum foil can be used to keep food moist, cook it evenly, and make clean-up easier.