Grilling a Pork Tenderloin Recipe: Smoky Char With Herb Infusion

Mastering the grill transforms pork tenderloin into a tender, smoky centerpiece worth savoring. My background in French technique meets pitmaster instincts with this method.

Simple ingredients and precise heat create a juicy interior with charred, herb-kissed crust. This approach delivers professional results every time.

Ingredients for Grilling a Pork Tenderloin

Professional results start with these precise ingredients for a tender, herb-infused pork tenderloin.

[recipeingredientscaler]

The pork tenderloin must be fresh—look for rosy color and minimal odor. Whole Foods or local butchers offer superior quality, but standard grocery stores work if you select carefully. Trim any silver skin yourself for even cooking. The herbs should be vibrant green without wilting; avoid pre-cut versions which lose potency quickly.

Substitute dried rosemary and thyme at one-third the amount if fresh isn’t available. For a sweeter glaze, swap balsamic for apple cider vinegar. No Dijon? Whole-grain mustard adds texture, or use yellow mustard in a pinch. The brown sugar can be replaced with honey (though texture differs slightly).

The rub keeps 24 hours refrigerated. Cooked tenderloin rests 10 minutes before slicing. Leftovers hold 4 days in the fridge or freeze for 3 months (slice before freezing for easy portions).

Step-by-Step Instructions for Grilled Pork Tenderloin

Master the technique for achieving a perfectly charred exterior with a tender, herb-infused interior.

Step 1: Prepare the Herb and Spice Rub

In a small bowl, combine the 1.5 tsp Kosher Salt, 1 tsp Freshly Ground Black Pepper, 2 tbsp Fresh Rosemary, 2 tbsp Fresh Thyme Leaves, 1 tsp Smoked Paprika, and 0.5 tsp Ground Cumin. The coarse texture of the salt and pepper will create a beautiful crust on the pork.

Add the 4 cloves Garlic Cloves, minced finely, to the bowl. Using a mortar and pestle or the back of a spoon, grind the mixture until it forms a fragrant paste. This releases the essential oils from the herbs, ensuring the rub adheres well and infuses the meat with robust flavor.

Step 2: Create the Marinade and Coat the Pork

In a separate bowl, whisk together the 2 tbsp Olive Oil, 1 tbsp Dijon Mustard, 1 tbsp Balsamic Vinegar, and 1 tbsp Light Brown Sugar. The Dijon mustard acts as an emulsifier, binding the oil and vinegar into a cohesive mixture.

Pat the 1.5 lb Pork Tenderloin dry with paper towels to ensure the rub and marinade adhere properly. Rub the herb mixture evenly over the surface of the pork, pressing it in firmly. Then, brush the marinade over the pork, coating it completely. Let it sit at room temperature for 20-30 minutes to allow the flavors to penetrate.

Step 3: Preheat the Grill and Grill the Pork

Preheat your grill to medium-high heat, around 400°F. Clean and oil the grates thoroughly to prevent sticking. Direct grilling at this temperature will create a beautiful char while locking in the juices.

Place the pork tenderloin on the grill and cook for 15-20 minutes, turning occasionally, until all sides are seared and the internal temperature reaches 145°F. The pork should develop a deep, golden-brown crust with visible grill marks. Avoid flipping too frequently, as this can prevent a proper sear from forming.

Step 4: Rest and Serve

Transfer the pork tenderloin to a cutting board, tent it loosely with aluminum foil, and let it rest for 10 minutes. This resting period allows the juices to redistribute throughout the meat, ensuring a tender and moist result.

Slice the pork against the grain into 1-inch thick medallions. The pork should be juicy and tender, with a smoky, herbaceous flavor in every bite. Serve immediately while still warm.

Make-Ahead Tips for This Recipe

Prep the Rub Ahead

Mix your herb rub up to 24 hours in advance. Combine 1.5 tsp Kosher Salt, 1 tsp Freshly Ground Black Pepper, 2 tbsp Fresh Rosemary, 2 tbsp Fresh Thyme Leaves, 1 tsp Smoked Paprika, and 0.5 tsp Ground Cumin in a bowl. Store covered in the fridge. The flavors meld beautifully overnight. 💡

Marinate Overnight

Whisk together 2 tbsp Olive Oil, 1 tbsp Dijon Mustard, 1 tbsp Balsamic Vinegar, and 1 tbsp Light Brown Sugar. Coat your 1.5 lb Pork Tenderloin and let it marinate for 8-12 hours. I use a ziplock bag for easy cleanup.

Pre-Slice Portions

After grilling and resting, slice your pork into 1-inch medallions before storing. This makes reheating easier and more consistent. Portion into meal-sized servings for grab-and-go lunches or dinners.

Freeze for Later

Wrap individual portions tightly in plastic wrap, then place in a freezer bag. Squeeze out all air to prevent freezer burn. Your pork will keep for up to 3 months at 0°F or below. I always label with the date. ❄️

Reheat Gently

Thaw overnight in the fridge. Reheat in a skillet over medium-low heat with a splash of water or broth. Cover and warm for 5-7 minutes, turning occasionally. This keeps the meat juicy and flavorful.