Take about same amounts of shoyu and sugar, put in a pot on the stove. Slice ginger root (thin), maybe about 1/3 as much as the other 2, and put in while heating up (saves time). Stir frequently an' lots while heating otherwise will burn. Put optional papaya in (no matter if ripe, is ok; if you buy cheap meat the papaya may not be optional, papaya contains the stuff that meat tenderizer is made from) when boiling and sugar is dissolved turn off. Let cool down some and add in beef. Let beef soak over night (or how ever long you want). I have sometimes only left it to soak for about 1/2 hour. You can make this with chicken too (or teriyaki pork).