Traeger Cajun Crab Legs

Traeger Cajun Crab is a smoky, buttery seafood dish that’s packed with bold flavor and easy to make on a pellet grill. Tender snow crab clusters and sweet corn soak up a rich Cajun-spiced butter, transforming into a savory meal that’s made for summer weekends. This recipe is simple. Just season, smoke, and serve. In under an hour, you’ll have a satisfying spread with minimal effort and maximum flavor, perfect for entertaining or a backyard feast.

Grilled Cajun Crab Legs

I’m such a huge fan of seafood. Crab, especially, is one of my favorites. Cooking seafood over wood fire is the perfect way to give it a touch of smoke without being overpowering.

We hit the easy button with this recipe by using a pre-made Cajun seasoning mix. You can make your own Cajun seasoning if you want, it is really easy to whip together, but I really love this Cajun Gold blend by Spiva Cooking.

Spiva also makes our whole line of custom OWYD Rubs, so pick some up while you’re there grabbing your Cajun Gold!

Want to make your own rub? You probably have all of the ingredients in your pantry. Here’s a quick and easy recipe!

Cajun Seasoning Recipe

• 1 teaspoon paprika
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• 1/4 teaspoon dried oregano
• 1/4 teaspoon dried thyme
• 1/4 teaspoon cayenne pepper (adjust for heat)
• 1/4 teaspoon black pepper
• 1/4 teaspoon salt

Why You’ll Love This Dish

• Smoky and bold – The Traeger adds rich depth that balances the spicy Cajun butter.
• Quick and easy – Minimal prep and hands-off cooking make this perfect for busy days.
• Great for groups – Scales up easily and feels festive for outdoor gatherings.
• Naturally gluten-free – Simple, clean ingredients work for a range of diets.
• Interactive eating – Cracking crab at the table makes it a fun, memorable meal.

Try our Dungeness Crab Scampi

Spicy Cajun Crab Legs Shopping List

Wondering if you have to hit the store? Here’s the list of items you’ll need to make this recipe. For specific amounts, please refer to the printable recipe card at the bottom of the post.

• Snow Crab Clusters – Pre-cooked and easy to grill, these offer sweet, tender meat with rich flavor.
• Corn On The Cob – Adds sweetness and texture; cut in halves or thirds for easier serving.
• Salted Butter – Creates a rich base for the seasoning and keeps everything juicy.
• Cajun Seasoning – Provides smoky, spicy flavor that defines this dish.
• Lemon – Squeezed at the end to brighten up the buttery richness and balance the spice.

Try our traditional Cajun Crab Boil!

How To Make Cajun Crab on the Traeger

This is just the overview so you can see what you’re actually getting into here. When you are cooking, you’ll want to use the full recipe at the bottom of the page.

1. Preheat your pellet grill to 275°F.
2. Arrange the crab clusters and corn in a grill-safe baking dish.
3. Mix melted butter and Cajun seasoning in a small bowl until smooth.
4. Pour the Cajun butter evenly over the crab and corn.
5. Place the dish in the smoker and cook for 30 minutes. Toss gently with tongs, then smoke for 15 more minutes.
6. Remove from the grill and squeeze fresh lemon juice over everything before serving hot.

Our Cajun Spot Prawns are delicious!

FAQ

Can I use a different type of crab?

Yes. King crab or Dungeness can be substituted, though you may need to adjust the cook time slightly based on size.

Can I prep this in advance?

You can prep the butter mixture and clean the crab and corn ahead of time. Assemble and grill just before serving for best texture and flavor.

How do I store leftovers?

Store in an airtight container in the fridge for up to 2 days. Reheat gently on the grill or in the oven at 300°F until warmed through.

What can I use if I don’t have a Traeger?

A standard oven or other pellet smoker will work, but you’ll miss the subtle smoke flavor. Add a dash of liquid smoke to the butter if needed.

Try our Asian-Style Ginger Scallion Crab, too!

Serve This With…

• Garlic Butter Noodles
• Coleslaw or Cucumber Salad
• Grilled Bread or Hush Puppies
• Adult Arnold Palmer

Traeger Cajun Butter Crab brings together smoke, spice, and sweetness in a way that’s both simple and impressive. It’s hearty without being heavy, and perfect for summer meals where flavor counts more than fuss. This is casual seafood at its best. Easy to cook, fun to eat, and satisfying for everyone at the table.