Traeger Cajun Crab is a smoky, buttery seafood dish that combines bold Cajun spice with tender crab and sweet corn. Cooked on a pellet grill, this simple recipe layers smoky flavor into pre-cooked snow crab clusters and corn that are bathed in a seasoned melted butter. Ready in under an hour, it’s a relaxed, crowd-pleasing meal ideal for backyard gatherings and summer weekends.
Grilled Cajun Crab Legs
Seafood shines when it’s cooked simply and over wood smoke; the Traeger or any pellet grill gives crab a gentle smoky note that complements its natural sweetness without overpowering it. This version uses pre-cooked snow crab clusters for convenience, then finishes them in a Cajun-spiced butter so every bite is rich, spicy, and aromatic.
Cajun Seasoning Recipe
If you prefer to mix your own Cajun blend rather than using a store-bought seasoning, here’s a quick pantry-friendly mix. Adjust the cayenne to control heat.
- 1 teaspoon paprika
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ¼ teaspoon dried oregano
- ¼ teaspoon dried thyme
- ¼ teaspoon cayenne pepper (adjust for heat)
- ¼ teaspoon black pepper
- ¼ teaspoon salt
Why You’ll Love This Dish
- Smoky and bold – Pellet grill smoke meets a buttery Cajun sauce for layered flavor.
- Quick and easy – Minimal prep and mostly hands-off cooking; great when you want flavor fast.
- Great for groups – The recipe scales easily for gatherings and feels festive on a shared platter.
- Gluten-free friendly – Simple ingredients make it suitable for many diets without modification.
- Interactive – Breaking crab and dipping into seasoned butter makes the meal social and memorable.
Pair this with other grilled seafood ideas or a classic crab boil for a full seafood spread. You can also try it alongside garlic butter noodles, a crisp coleslaw, or grilled bread for soaking up extra butter.
Spicy Cajun Crab Legs Shopping List
Most of these items are pantry staples or easy to find at any market. Quantities for the recipe are listed in the ingredients section below.
- Snow crab clusters – Pre-cooked for easy finishing on the grill.
- Corn on the cob – Adds sweetness and texture; cut into halves or thirds for serving.
- Salted butter – Melts into a rich base for the Cajun seasoning.
- Cajun seasoning – Homemade or store-bought; defines the dish.
- Lemon – Freshly squeezed at the end brightens the rich butter and spice.
How To Make Cajun Crab on the Traeger
Below is a concise overview of the cooking process. Full ingredient amounts and a printable-style recipe are included in the ingredients and instructions section.
- Preheat your pellet grill to 275°F (135°C).
- Arrange crab clusters and corn in a grill-safe baking dish or sheet pan.
- Whisk melted butter with Cajun seasoning to make a spiced butter sauce.
- Pour the Cajun butter evenly over the crab and corn so everything is well coated.
- Place the dish on the grill and smoke for roughly 30 minutes. Use tongs to gently turn the crab and corn, then smoke for an additional 15 minutes until heated through and infused with smoke.
- Remove from the grill, squeeze fresh lemon over the crab and corn, and serve immediately while hot.
FAQ
Can I use a different type of crab?
Yes. King crab or Dungeness are good alternatives; adjust cook time slightly for larger or denser clusters. Because most are pre-cooked, you’re mainly reheating and flavoring rather than fully cooking raw crab.
Can I prep this in advance?
Absolutely. Mix the Cajun butter and trim or clean the crab and corn ahead of time. Assemble and finish on the grill just before serving for the best texture and temperature.
How do I store leftovers?
Store cooled leftovers in an airtight container in the refrigerator for up to 2 days. Reheat gently on the grill or in an oven at 300°F until warmed through—avoid overcooking to keep crab meat tender.
What can I use if I don’t have a Traeger?
A conventional oven or other smoker will work fine. For the smoky flavor, consider using a small amount of liquid smoke in the butter or finishing briefly over a charcoal grill if possible.
Serve This With…
- Garlic butter noodles or crusty grilled bread to soak up the spiced butter
- Coleslaw or a refreshing cucumber salad for contrast
- Hush puppies or a simple green salad for variety
- A cold, iced tea or a citrusy drink to cut richness
Recipe Card
Yield: 6 servings • Prep Time: 5 minutes • Cook Time: 35 minutes • Total Time: 40 minutes
Ingredients
- 3 pounds snow crab clusters (pre-cooked)
- 3 ears of corn, halved or cut into thirds
- ½ cup salted butter, melted
- 1 tablespoon Cajun seasoning (or to taste)
- 1 lemon, halved for squeezing
Instructions
- Preheat the pellet grill to 275°F.
- Place corn and crab into a grill-safe baking dish or sheet pan in an even layer.
- Combine the melted butter with Cajun seasoning until smooth. Pour this butter over the crab and corn to coat well.
- Place the dish on the grill and smoke for 30 minutes.
- Use tongs to gently toss the crab and corn so the butter re-coats everything, then smoke for another 15 minutes.
- Remove from the grill, squeeze fresh lemon over the top, and serve hot.
Nutrition (approx. per serving)
Calories: 230 • Total Fat: 16g • Saturated Fat: 10g • Cholesterol: 64mg • Sodium: 604mg • Carbohydrates: 11g • Fiber: 2g • Sugar: 3g • Protein: 12g
Traeger Cajun Butter Crab is a straightforward, flavorful dish that highlights the sweet meat of crab with smoky, spicy butter and a bright squeeze of lemon. It’s easy to scale, a fun hands-on meal for friends and family, and a delicious way to showcase a pellet grill’s subtle smoke on seafood.
