Galvan Estate Grilled Pork Tenderloin

Description
This recipe came from an estate sale. I obtained it when I purchased the family collection from the Galvan Estate in Fort Worth, Texas in 1986.
 * Contributed by Catsrecipes Y-Group

Ingredients

 * 1 pork tenderloin
 * ½ cup soy sauce
 * 2 oranges juiced
 * 1 lime juiced
 * ½ cup tamarind concentrate
 * 1 tablespoon Dijon mustard
 * 1 teaspoon ground ginger
 * 1 garlic clove crushed
 * 1 tablespoon chopped scallions

Directions

 * 1) Combine marinade ingredients in measuring cup and stir to combine then place tenderloin in a plastic sealable bag and pour marinade over meat and seal.
 * 2) Marinate overnight in refrigerator.
 * 3) When ready to cook preheat outdoor grill.
 * 4) Remove pork tenderloin from marinade and pat dry.
 * 5) Brush olive oil onto grill and over meat for extra flavor.
 * 6) Reserve marinade.
 * 7) Grill tenderloin until cooked through about 40 minutes over medium heat.
 * 8) Allow meat to rest about 10 minutes before cutting into serving pieces.
 * 9) While meat is grilling bring reserved marinade to a boil in a small saucepan then lower the heat and gently simmer until it is reduced to about 2 tablespoons.
 * 10) Stir occasionally.
 * 11) Drizzle a small amount of marinade over each piece of meat.