This dish brings the bold flavors of Cajun seasoning to the grill, creating a spicy, buttery masterpiece. My years of pitmaster experience led me to perfect this balance of heat and richness.
The secret lies in basting the shrimp with a Cajun-spiced butter sauce while grilling, ensuring every bite is packed with smoky, savory depth that’s both impressive and approachable.
Ingredients for Cajun Barbecue Shrimp
Bold Cajun spices meet buttery richness for an unforgettable grill experience.
| Ingredient | Amount | Notes |
|---|---|---|
| Large Shrimp 🍤 | 1 ½ lb | Peeled, deveined, tails on |
| Unsalted Butter 🧈 | ½ cup | Melted for basting sauce |
| Cajun Seasoning 🌶️ | 2 tbsp | Store-bought or homemade blend |
| Garlic Cloves 🧄 | 4 cloves | Minced for sauce infusion |
| Worcestershire Sauce 💧 | 1 tbsp | Adds umami depth to butter |
| Hot Sauce 🌶️ | 1 tbsp | Crystal or Tabasco preferred |
| Fresh Lemon Juice 🍋 | 2 tbsp | Brightens the sauce |
| Fresh Parsley 🌿 | ¼ cup | Chopped, for garnish |
| Green Onions 🧅 | 4 whole | Thinly sliced for topping |
| Vegetable Oil 🫒 | 1 tbsp | For grill preparation |
| Kosher Salt 🧂 | 1 tsp | For seasoning shrimp |
| Freshly Ground Black Pepper 🌶️ | ½ tsp | For seasoning shrimp |
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The shrimp are non-negotiable here—large, wild-caught from the Gulf if you can find them. Whole Foods or a trusted seafood counter will have good options. Look for firm, translucent flesh (not cloudy or fishy-smelling). I always leave the tails on for presentation, but remove them if you prefer. The Cajun seasoning? Tony Chachere’s is my go-to, but any blend with cayenne, paprika, and garlic will work.
No Cajun seasoning? Make your own with equal parts paprika, garlic powder, onion powder, cayenne, and oregano (plus a pinch of thyme). One-third the amount of dried parsley works if you’re out of fresh. The Worcestershire adds depth—Annie’s makes a great vegetarian version. The hot sauce is flexible; Crystal or Tabasco give that Louisiana tang. For extra smokiness, add a pinch of smoked paprika to the butter.
This tastes best straight off the grill, but leftovers keep 1-2 days in the fridge. Reheat gently in a skillet with a splash of water to prevent drying. The butter sauce will solidify when cold—just melt it before reheating. Don’t freeze the shrimp once cooked, as they’ll get rubbery.
Why You’ll Love This Recipe
- One Pan Magic: I toss the shrimp with butter, garlic, and Cajun seasoning in a single skillet—minimal cleanup, maximum flavor.
- Spicy Buttery Bliss: The Worcestershire sauce and Cajun seasoning create a rich, smoky depth that coats every shrimp.
- Weeknight Hero: Honestly, it’s my go-to for last-minute dinners that still feel special.
- Feeds More Once: Leftovers? They reheat beautifully for lunch the next day—if there are any left.
Step-by-Step Instructions for Cajun Barbecue Shrimp
Here’s how I achieve perfectly charred, buttery shrimp with bold Cajun flavors every time.
Step 1: Prepare and Season the Shrimp
Pat the 1.5 lb Large Shrimp thoroughly dry with paper towels. This step is non-negotiable—moisture prevents proper searing and causes steaming instead of grilling.
Toss the shrimp in a bowl with the 1 tbsp Vegetable Oil, 1 tsp Kosher Salt, and 0.5 tsp Freshly Ground Black Pepper. Coat them evenly, then sprinkle the 2 tbsp Cajun Seasoning over the top. Gently toss until every shrimp is fully covered with the spice blend. Let them sit for 10 minutes while you prep the rest.
Step 2: Create the Spicy Butter Basting Sauce
In a small saucepan, melt the 0.5 cup Unsalted Butter over low heat. As soon as it’s fully melted, add the 4 cloves minced Garlic Cloves and cook for 1-2 minutes until fragrant but not browned. Garlic burns easily, so keep the heat gentle and stir constantly.
Remove the pan from heat and stir in the 1 tbsp Worcestershire Sauce, 1 tbsp Hot Sauce, and 2 tbsp Fresh Lemon Juice. The sauce should smell aromatic and slightly tangy. Keep it warm but not boiling—you’ll use this to baste the shrimp as they grill.
Step 3: Grill the Shrimp to Perfection
Preheat your grill to medium-high heat. Clean the grates thoroughly, then oil them lightly to prevent sticking. Arrange the seasoned shrimp on the grill in a single layer, leaving a little space between each one.
Grill the shrimp for 2-3 minutes per side until they turn opaque and pink with visible grill marks. Avoid overcrowding the grill—this lowers the heat and steams the shrimp instead of searing them. Baste the shrimp generously with the butter sauce during the last 1 minute of cooking on each side.
Step 4: Garnish and Serve Immediately
Transfer the grilled shrimp to a large serving platter or bowl. Pour any remaining basting sauce over the top, making sure every piece is coated in the rich, spicy butter.
Sprinkle the 0.25 cup chopped Fresh Parsley and 4 whole thinly sliced Green Onions evenly over the shrimp. The fresh herbs add a bright, vibrant contrast to the bold Cajun flavors. Serve immediately with crusty bread to soak up the sauce—this dish doesn’t wait.
Pro Tips For Making Cajun Barbecue Shrimp
- Use Room-Temp Shrimp: Pull the shrimp out of the fridge 15-20 minutes before cooking—cold shrimp seize up in the hot pan and turn rubbery instead of soaking up that garlicky Cajun butter.
- Sear First, Sauce Later: Get a hard sear on the shrimp in the butter first, then add the garlic, Worcestershire, and seasoning; dumping it all in at once steams the shrimp instead of building flavor.
- Skip the Substitutes: Unsalted butter is non-negotiable here—salted butter can make the dish unpleasantly salty once the Cajun seasoning (which already has salt) gets involved.
- Double the Garlic: I learned this the hard way: 3-4 cloves sounds like a lot, but the bold flavors in this dish can overpower it—mince it fine so it melts into the sauce.
Essential Equipment for cajun barbecue shrimp
Grill Essentials
For this dish, a high-quality grill is non-negotiable. I use my Weber Genesis EX-335 gas grill for its precise temperature control and even heat distribution. A cast iron grill grate helps create those beautiful sear marks on the shrimp. 🔥
Basting Tools
A long-handled basting brush is crucial for safely applying the butter sauce while grilling. I prefer a silicone brush like the OXO Good Grips model—it won’t melt and cleans easily. Keep a small heatproof bowl nearby to hold your basting sauce.
Temperature Control
An instant-read thermometer ensures your grill stays at the perfect medium-high heat (around 375-400°F). I use the ThermoWorks Instant Read for accuracy. This prevents undercooking or burning the shrimp during their quick cook time.
Prep Station
Have a large mixing bowl ready for seasoning the shrimp and a tongs set for flipping. I keep a small saucepan on my side burner for melting the butter sauce. Organization is key when working with high heat and quick-cooking seafood.
Serving Setup
A large platter or shallow bowl works best for serving. I like to warm mine slightly so the butter sauce doesn’t solidify. Have crusty bread ready to soak up every last drop of that spicy butter goodness.
Cleanup Helpers
Keep a grill brush and aluminum foil nearby for easy cleanup. I also recommend heat-resistant gloves for handling the hot grill grates. These small tools make the entire process smoother and more enjoyable. 💡
Nutrition Facts
Frequently Asked Questions
What size shrimp works best for grilling?
Use large or jumbo shrimp (16-20 count per pound) for ideal results. They hold up better to the heat and stay juicier than smaller varieties. Always leave tails on for presentation and flavor.
Can I make this in the oven instead?
Yes! Broil on high heat for 3-4 minutes per side, basting once. Watch closely to prevent burning. The grill adds smokiness, but the oven works in a pinch.
How do I prevent the butter from burning?
Keep the sauce on low heat and baste only during the last 1 minute of grilling. The sugars in Worcestershire can scorch if exposed to direct flame too long.
What’s the best way to serve this?
Serve immediately with crusty French bread to soak up the sauce. A simple green salad or grilled corn makes perfect sides. The butter solidifies quickly, so don’t delay!
Trained in classic French technique but raised on slow-cooked ribs and spicy rubs, she blends culinary skill with smoke and soul.
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