We went to Ken & Deb's for dinner and she served this ... I got the recipe and have made it almost every week since. It's great for company ...
Pork Tenderloin Marinade - serves 4*
* I usually double it for extra sauce
1/4 cup soy sauce
2 tbsp dry sherry
2 tbsp vegetable oil
1 tbsp brown sugar
1 tbsp grated fresh ginger (I store mine in the freezer)
1 tsp liquid honey
1 garlic clove, crushed
1 pound pork tenderloin
Place ingredients in a large plastic bag after combining well in a bowl. Add pork. Marinate at least 20 minutes ( I usually marinate for an hour or so ...)
For BBQ: place on greased BBQ, grilled over med/high heat. Close lid and cook for 25-30 minutes (or until 150F), turning and basting. Remove from grill and let rest (core temp needs to reach 160F). Slice into 1/2 inch slices.
For oven: place pork in a baking dish with all of the marinade. Bake at 375F uncovered for 10 minutes, and then covered for an additional 40-50 minutes. This won't try out because it's covered - so check pork temp before removing (150F). Let rest (to 160F). Cut into 1/2 inch slices.