Marinades are meant to enhance the flavor of meat and vegetables, not cover them up. Though you may be tempted, don't marinate the pork longer than 6 hours or you'll overpower the flavor of the pork. This recipe was written by the Healthline Editorial Team: http://www.healthline.com/health-recipes/west-indies-pork-tenderloin —Healthline
Remove silver skin, leaving a thin layer of fat covering the tenderloin.
Whisk together soy sauce and remaining ingredients in a shallow dish or bowl. Add pork and turn to coat in marinade. Cover and refrigerate up to 6 hours.
Remove pork from marinade, discarding marinade. Allow pork to rest at room temperature 30 minutes before cooking.
Heat charcoal, gas, or indoor grill to medium-high heat. Pat pork dry and lightly spray with vegetable cooking spray. Place on grill and cook, 8 to 10 minutes per side or until thermometer inserted into thickest portion registers 155°F. Remove from grill and allow to rest, uncovered, for 10 minutes before slicing.