Preheat broiler. Split each turkey breast tenderloin in half horizontally. Place turkey on the unheated rack of a broiler pan. Season with salt and pepper. Broil 4 to 5 inches from heat for 5 minutes.
Meanwhile, in a small saucepan, melt jelly over low heat. Remove 2 tablespoons of the jelly. Turn turkey; spoon the 2 tablespoons jelly evenly over turkey. Broil for 4 to 6 minutes more or until tender and no longer pink (170 degree F).
Transfer turkey to a serving plate. Spoon remaining jelly over turkey; cover and keep warm. In a small saucepan, heat salsa. Spoon salsa over turkey. Sprinkle with cilantro. Makes 4 servings.