The glaze we are using for this recipe couldn’t be easier to pull together. It uses orange marmalade, soy sauce, honey, rice wine vinegar, and a pinch of red pepper flakes. We marinate the pork first in half of the glaze sauce, and then use the remaining sauce to coat the finished tenderloin. The secret to grilling pork tenderloin is to watch it carefully, with a meat thermometer in hand, because once it goes, it goes quickly. A pork tenderloin is a long, narrow cut of meat which cooks very quickly, so that the difference between perfectly done and over-cooked is slim, time-wise. Have a meat thermometer ready, and start checking with increasing frequency as you approach the expected cooking time. Recipes and photos updated, first published 2007 Reserve half of the marinade for serving as a sauce with the finished tenderloin. As soon as the tenderloin gets grill marks on one side (a minute or two), turn it to get grill marks on another side. Continue until all sides are lightly seared. If you have taken it out in time, tent the tenderloin with foil and let it rest 10 minutes. Thinly slice, sprinkle with the remaining glaze and scallions. Serve with rice.