I have made this before from scratch to the best of what research I had available. This time, I grabbed a few packets of Char Siu marinade from the big W that looked Asian and somewhat authentic.
Taking 2.5# of tenderloin and slicing it into long, thin strips was all I did other than adding the marinade powder to the zip top bag.
It rested overnight. Then- raised direct at about 375F
Getting some char-color
Switched to direct and opened the vents
and a couple of plated pics-
Instant classic at my place-
Thanks for looking! P-