I adapted this marinade from one of the sauces that goes with the Bo Ssam recipe -- I let two port tenderloins soak in it for 6 hours, and cooked them on the grill, over medium heat, for about 25 minutes each. Was delicious!
1/3 cup canola oil
1/4 cup soy sauce
1/4 cup sherry vinegar
4 large garlic cloves, grated
2 tsps. ginger, grated
1/2 tsp. sesame oil
1 heaping tablespoon of brown sugar
Whisk this all together, and marinate away! Could easily be used for chicken, beef, or even a fish like salmon.