Directions

1. Place pork tenderloins each on a large piece of plastic wrap. Combine salt, hickory marinade mix and smoked paprika. Stir in 2 Tbs olive oil. Rub mixture evenly over each of the pork tenderloins. Wrap tenderloins in the plastic wrap. Marinate at room temperature for 30 minutes, or in the refrigerator for up to 2 hours.
2. Prepare a medium-hot fire in grill. Unwrap pork. Grill tenderloins, uncovered, over direct heat for 20 minutes or until temperature reaches 145 degrees F., turning tenderloin over halfway during grilling. Transfer tenderloin to a cutting board. Loosely cover with foil; let rest for 5-10 minutes. To serve, cut into 1/4-inch-thick slices.
3. For vinaigrette: Heat 3 tablespoons olive oil in large, heavy skillet. Add onion, carrot, celery and piquillo pepper. Cook over medium-low heat about 30 minutes or until onion is slightly caramelized, stirring occasionally.