Barbecued Shrimp Recipe: Cajun-Spiced Grill Mastery

Getting my first whiff of hickory smoke at a family cookout still inspires my grilling today. This dish captures that memory with bold Cajun flavors and juicy shrimp.

Simple ingredients transform into something extraordinary with the right spice blend. The shrimp soak up smoky, spicy notes while staying tender on the grill.

High heat and quick cooking ensure perfectly charred results without overcooking. The Cajun seasoning adds depth that elevates each bite.

Serve these straight from the grill for a meal that tastes like a coastal summer night. The aroma alone will draw a crowd.

Ingredients for Barbecued Shrimp

Bold Cajun spices and fresh shrimp bring coastal cookout flavors to life. Simple yet extraordinary.

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The shrimp quality is non-negotiable. Wild-caught Gulf shrimp (16/20 count) give the best texture and flavor. Whole Foods or a reputable seafood counter are ideal—avoid anything pre-frozen or treated with preservatives. For the Cajun seasoning, Tony Chachere’s is the gold standard, but any blend with paprika, cayenne, and garlic will work. Soak the hickory chips for at least 30 minutes before grilling.

No Cajun seasoning? Mix 1 tbsp paprika, 1 tsp each garlic powder and onion powder, ½ tsp each cayenne and black pepper, ½ tsp thyme. Out of Worcestershire? Soy sauce plus a dash of vinegar approximates the tang. The butter can be substituted with olive oil, but you’ll lose some richness. If using wooden skewers, soak them too—no one wants charred sticks.

Marinate the shrimp for no more than 15 minutes (acidic ingredients toughen them). Grill immediately after basting. Leftovers? 2 days max in the fridge—they’re best fresh. Freezing isn’t recommended; shrimp lose their texture.

Step-by-Step Instructions for Barbecued Shrimp

Master the grill with this method, precision-tested for bold Cajun flavor and perfect texture.

Step 1: Prepare the Marinade and Shrimp

In a large bowl, whisk together the 0.25 cup Olive Oil, 2 tbsp Lemon Juice, 1 tbsp Worcestershire Sauce, 1 tbsp Hot Sauce, 4 cloves minced Garlic Cloves, 2 tbsp Cajun Seasoning, 1 tsp Kosher Salt, and 0.5 tsp Freshly Ground Black Pepper until fully emulsified. This creates a powerful marinade that tenderizes while infusing layers of flavor.

Add the 1.5 lb Large Shrimp to the marinade, ensuring each piece is thoroughly coated. Let it sit at room temperature for 15-20 minutes—long enough to absorb the flavors but not so long that the acid starts to “cook” the shrimp. The shrimp should glisten with the marinade, ready for the grill.

Step 2: Prep the Grill for Smoky Heat

While the shrimp marinates, soak the 1 cup Hickory Wood Chips in water for 10 minutes to prevent them from burning too quickly. Preheat your grill to medium-high heat (about 400°F). If using a charcoal grill, bank the coals to one side for indirect heat; if using gas, preheat all burners then reduce to medium-high.

Once hot, drain the wood chips and place them directly on the coals or in a smoker box. Close the lid and let the smoke build for 5 minutes—you should see a steady stream of smoke before adding the shrimp. This ensures a consistent smoky flavor throughout the cook.

Step 3: Grill the Shrimp to Perfection

Thread the shrimp onto skewers if desired, or grill them directly on the grates. Place the shrimp on the grill and cook for 2-3 minutes per side, basting occasionally with the 4 tbsp melted Unsalted Butter for added richness. The shrimp are ready to flip when they turn opaque and develop a light char.

Watch closely—shrimp cook quickly. They’re done when they’re pink and slightly curled, with the internal temperature reaching 145°F. Remove them from the grill immediately to avoid overcooking, which makes them rubbery.

Step 4: Garnish and Serve

Transfer the grilled shrimp to a serving platter. Sprinkle with the 0.25 cup chopped Fresh Parsley for a bright, fresh contrast to the smoky, spicy flavors. The parsley adds color and a clean finish to the dish.

Serve immediately while the shrimp are hot, with extra basting butter drizzled on top if desired. The shrimp should be juicy and tender with a bold, spicy-sweet crust from the Cajun seasoning and grill char.

Flavor Customization for This Dish

Spice Level Adjustments

For milder heat, reduce the Cajun Seasoning to 1 tbsp and skip the Hot Sauce. The dish will still carry deep Cajun flavor without the fiery kick. I often do this for guests who prefer less heat.

Butter Variations

Swap the Unsalted Butter for garlic-herb compound butter by mixing in 1 tsp dried thyme and 1 minced garlic clove. For a smoky twist, use smoked butter from local butcher shops. 🔥

Citrus Boost

Add zest of 1 lemon to the marinade for a brighter citrus note. The oils in the zest amplify the Lemon Juice without making it sour. This works beautifully with Gulf shrimp’s natural sweetness.

Herb Infusions

Mix 1 tbsp chopped rosemary or thyme into the marinade. I forage wild rosemary along coastal rides—it adds an earthy depth that pairs perfectly with hickory smoke.

Sweet and Spicy

Stir 1 tbsp honey or brown sugar into the marinade for a sweet contrast to the heat. This creates a sticky, caramelized crust on the grill. Just balance it with extra Lemon Juice to cut the sweetness.

Extra Smokiness

Double the Hickory Wood Chips to 2 cups for a more intense smoke flavor. Soak them longer—45 minutes—to ensure they smolder rather than burn. This reminds me of those backyard cookouts from my childhood. 💨

Frequently Asked Questions