Pork Sirloin Tip Roast Grill Recipe: Smoky Char With Herb Crust

This pork sirloin tip roast grill recipe delivers smoky char with a herb crust that's hard to beat. I developed this method after years of perfecting my grill technique, combining classic French herb blends with traditional smoke cooking.

The key is a dry rub that forms a flavorful crust while the meat develops a perfect sear. I use a mix of fresh rosemary, thyme, and garlic powder, pressed firmly into the roast before it hits the grill. The result is a beautiful bark that locks in juices.

Grilling at medium-high heat creates that coveted char without drying out the meat. The pork emerges tender and juicy, with a smoky depth that only live fire can provide. Each bite offers a perfect balance of herbaceous crust and succulent meat.

Serve this with grilled vegetables or a fresh salad for a complete meal. The leftovers make exceptional sandwiches the next day.

Ingredients for Pork Sirloin Tip Roast Grill

A handful of bold ingredients create that signature smoky herb-crusted pork sirloin tip roast.

The pork sirloin tip roast is the foundation—look for well-marbled cuts at Whole Foods or Costco. Fresh herbs matter here; organic rosemary and thyme from a farmers market or specialty grocer deliver superior aroma. The coarse sea salt, particularly Diamond Crystal, ensures even seasoning distribution. For the wood chips, hickory provides classic smoke, but apple or cherry wood work beautifully for a fruitier note.

No fresh herbs? Dried rosemary and thyme at one-third the amount work in a pinch. Short on time? Pre-minced garlic can replace garlic powder (use 2 cloves). If you lack Dijon, whole-grain mustard adds similar tang. For a stronger crust, add 1 tsp brown sugar to the rub. The apple cider vinegar can be swapped with white wine vinegar without noticeable difference.

The uncooked roast keeps in the fridge for 2-3 days or can be frozen for 6 months. Once grilled, store leftovers in an airtight container for up to 4 days. Reheat gently to preserve moisture, or slice thin for sandwiches. The herb crust holds up well to freezing, making this ideal for meal prep.

Step-by-Step Instructions for Pork Sirloin Tip Roast on the Grill

Master the technique for smoky, herb-crusted pork with perfect char every time.

In a small bowl, combine the 2 tbsp Fresh Rosemary, 2 tbsp Fresh Thyme Leaves, 1 tbsp Garlic Powder, 1.5 tsp Coarse Sea Salt, 1 tsp Freshly Ground Black Pepper, and 1 tsp Smoked Paprika. This aromatic blend forms the flavor foundation for your crust.

Pat the 2.5 lb Pork Sirloin Tip Roast dry with paper towels, then rub it with 1 tbsp Dijon Mustard and 1 tbsp Apple Cider Vinegar to help the seasoning adhere. Massage the herb mixture evenly over all surfaces, pressing firmly to create a thick, even coating. Let the seasoned roast rest at room temperature for 20-30 minutes while you prepare the grill.

Soak the 1 cup Hickory Wood Chips in water for 30 minutes, then drain. This prevents them from burning too quickly and produces clean, flavorful smoke. You want steady, thin blue smoke—not thick white smoke, which can impart a bitter taste.

Prepare your grill for indirect heat. For a charcoal grill, bank the coals to one side; for a gas grill, preheat all burners then turn off one side. Add the soaked wood chips directly to the coals or in a smoker box. Maintain a grill temperature of 325-350°F throughout cooking. The indirect setup allows the roast to cook evenly without burning the exterior before the interior is done.

Place the roast on the hot side of the grill and sear for 2-3 minutes per side until it develops a deep, golden-brown crust. This initial sear locks in juices and creates the Maillard reaction for complex flavors.

Move the roast to the cool side of the grill, cover, and cook with indirect heat for 1 to 1.25 hours. Avoid opening the lid unnecessarily—each peek releases heat and smoke. The roast is ready when an instant-read thermometer inserted into the thickest part registers 145°F and the surface is deeply browned with a firm crust.

Transfer the roast to a cutting board, tent loosely with foil, and let it rest for 10-15 minutes. This critical step allows the juices to redistribute throughout the meat, ensuring every slice is moist and flavorful. The internal temperature will rise 5-10 degrees during resting.

Quarter the 1 whole Yellow Onion and serve alongside the roast. Carve the pork against the grain into ½-inch thick slices. The meat should be tender with a subtle pink center and encrusted with the fragrant herb mixture. Serve immediately with the grilled onion for a complete, smoky meal.

Make-Ahead Tips for This Dish

Prep the Rub Ahead

Mix the herb rub up to 2 days in advance and store in an airtight container. The flavors meld beautifully—just add 1 tsp water if it seems dry before applying. I often make a double batch to have ready for spontaneous grilling sessions. 💡

Dry Brine Overnight

After applying the rub, let the roast sit uncovered in your fridge for 12-24 hours. This dry brine draws moisture to the surface, enhancing the crust formation. Pat it dry again before grilling for maximum char. The salt penetrates deeply, ensuring seasoning throughout.

Pre-Soak Wood Chips

Soak the hickory wood chips the night before and store them in the fridge in their soaking water. This saves 30 minutes of prep time on grilling day. Drain and use as directed—cold, soaked chips produce the cleanest smoke.

Room Temp Start

Take the seasoned roast out of the fridge 1 hour before grilling to bring it to room temperature. This ensures even cooking from edge to center. I set mine on the counter while prepping the grill and sides.

Partial Cook Option

For make-ahead meals, cook the roast to 130°F internal, then wrap in foil and refrigerate. Finish cooking on the grill later—add 15-20 minutes to the total time. This works great for dinner parties.

Slice and Store

After resting, slice the roast and store in airtight containers with juices poured over. It keeps for 4 days in the fridge. Reheat slices in a skillet with 1 tbsp olive oil for 2-3 minutes per side. 🔥

Frequently Asked Questions