make barbecue sauce by combine all ingredients in a small sauce pan. Bring to a boil over medium heat stirring constantly just until sugar is completely dissolved. Remove from heat and set aside to cool. Sauce can be store covered in the refrigerator for up to a month.
Place tenderloins on a tray. Combine the salt, pepper, and five spice powder. U all of the mixture to season the the tenderloins. For best results, cover and refrigerate tenderloins for a couple hours or overnight before grilling.
Set up grill for direct cooking over medium-high heat. Brush and oil grate when ready to start cooking. Place pork on the hot oiled grill. Cook for 3 to 5 minutes on each side (four sides) for a total of 14 to 18 minutes or until internal temperature registers a minimum of 140˚F (medium rare) and up to 160˚F (medium). Brush tenderloins liberally with barbecue sauce allowing the sauce to caramelize slightly on the grill.
Remove from grill, tent with foil and let rest for 5 minutes before slicing. Brush with any remaining sauce and slice across the tenderloins on the bias.
Recipe by Grilling Outdoor Recipes powered by Bull Outdoor Products at https://blog.bullbbq.com/asian-bbq-pork-tenderloin-with-cold-sesame-noodles/