Grilled Turkey Tenderloin with Brown Sugar - Mustard Sauce

This is an easy recipe that results in a moist, flavorful meat that works well for a meal or sliced thin for sandwiches.
Based on a recipe found online "Grilled Turkey Tenderloin with Brown Sugar and Whole Grain Mustard", Brenda, Nov. 6, 2017.
Prep Time15 minutes
Cook Time1 hour
Marinating time1 hour
Total Time2 hours 15 minutes
Course: Grill, Main Course - Chicken - Poultry
Author: Catherine Christiano


  • 2 pounds turkey tenderloins


  • 1/4 cup dark brown sugar packed
  • 1/4 cup whole grain mustard
  • 1 1/2 teaspoons apple cider vinegar
  • 1/2 teaspoon ground black pepper
  • 1/2 teaspoon minced garlic about 1 small clove


  • In a shallow baking dish or pie plate, add marinade ingredients and stir until uniformly mixed. Place tenderloins in dish, turn to coat evenly with marinade. Cover and refrigerate one hour.
  • Using a gas grill, place disposable aluminum pans each filled with 1 1/2 cups water directly on 1 burner of gas grill (opposite primary burner). Turn all burners to high, cover, and heat grill until hot, about 15 minutes. Turn primary burner to medium-high and turn off other burner(s). Adjust primary burner as needed to maintain grill temperature of 325 - 350 °F.
  • Clean and oil cooking grate. Place turkey on grill; sear 2 minutes then turn over and sear 2 minutes on second side. Move turkey to cooler part and brush both sides with sauce. Arrange turkey with thickest portion closest to fire and thinner ends farthest away. Turn burner 1 off and turn burner 2 to adjust temperature to 300°F. Cover and cook for 15 minutes.

  • Brush both sides additional marinade and continue to cook, covered, until center of thickest portion of tenderloins register 160°F , 20 - 30 minutes longer. Total cooking time is approximately 40 minutes.
  • Remove tenderloins to a cutting board. Allow to rest 5 minutes before slicing. Serve hot or cold for a summer meal or for sandwiches.


Optional spices to add to the glaze include 1/2 teaspoon cumin and 1/4 teaspoon smoked paprika.
Copyright 2023, Catherine Christiano. Website by Catherine Christiano.