This Cajun Crab and Shrimp Boil delivers bold, smoky flavors with tender seafood, crisp corn, and seasoned sausage. A homemade Cajun seasoning blend and a spiced butter finish bring savory heat to every bite. Ideal for backyard gatherings or a special family dinner, this one-pot meal is straightforward to prepare and built for sharing.

Cajun Crab and Shrimp Boil with Homemade Seasoning
Seafood boils are a classic communal meal—and surprisingly easy to make at home. With a few simple steps and fresh ingredients you can recreate that vibrant, restaurant-quality flavor right in your kitchen. This version uses a homemade Cajun seasoning for depth and a packet-style boil mix for convenience, but feel free to skip or substitute any component based on what you have available.
If Dungeness crab isn’t available, use any crab you can source. This recipe adapts well: add clams, mussels, scallops, prawns, or other firm white fish. The method is forgiving, allowing you to tailor the seafood mix to taste and availability.
Why You’ll Love This Dish
- Homemade Seasoning Blend: Freshly mixed spices provide a lively, balanced flavor.
- One-Pot Meal: Protein, vegetables, and seasonings cook together for minimal cleanup.
- Flexible Ingredients: Swap seafood and sausage to suit preferences or seasonal catches.
- Impressive Presentation: A colorful platter of crab, shrimp, corn, and potatoes makes a great centerpiece for gatherings.
- Rich Cajun Butter: A buttery, spiced drizzle that enhances every bite.
Try out Garlic Steamed Clams for another simple seafood dish!

Recipe Shopping List
Here’s what you’ll need to prepare this Cajun boil. Quantities and full instructions are included in the recipe card below.
For Homemade Cajun Seasoning:
- Cayenne pepper
- Paprika
- Dried oregano
- Garlic powder
- Dried thyme
- Salt
- Onion powder
- White pepper
For the Crab Boil:
- Crab and shrimp boil mix (optional convenience packet)
- Homemade Cajun seasoning
- Fresh lemon
- Water
- Beer (blonde or amber ale optional)
- Baby potatoes
- Corn on the cob
- Andouille or smoked sausage
- Dungeness crabs or other crab
- Large shrimp (shells on)
For Cajun Butter:
- Butter
- Homemade Cajun seasoning
Try Surf and Surf Alfredo for another indulgent seafood option!

How To Make This Recipe
The following overview summarizes the main steps. Refer to the recipe card below for exact quantities, timing, and tips for best results.
- Prepare the Cajun Seasoning: Combine cayenne, paprika, oregano, garlic powder, thyme, salt, onion powder, and white pepper to taste.
- Simmer Vegetables and Sausage: In a large pot, add water, beer (if using), the boil mix (optional), Cajun seasoning, lemon halves, baby potatoes, halved corn, and sausage. Simmer until potatoes and corn are tender.
- Make the Cajun Butter: Melt butter and whisk in a tablespoon or so of the Cajun seasoning. Keep warm for serving.
- Cook the Seafood: Add crabs and shrimp to the simmering pot. Cook just until the crab is heated through and shrimp are opaque.
- Serve: Drain or lift ingredients onto a platter, drizzle generously with Cajun butter, and serve hot with crab crackers and plenty of napkins.
Our Traeger Surf and Turf Seafood Feast is another great choice for entertaining!

Recipe FAQ
How should I store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 2 days. Reheat gently on the stovetop or in short intervals in the microwave to retain texture—avoid overcooking the seafood.
Can I make this in advance?
Yes. Prepare the Cajun seasoning ahead of time and cook the potatoes and sausage in advance. Reheat those components, then add seafood to cook briefly just before serving for the best texture.
Can I substitute ingredients?
Absolutely. Use crawfish, king crab, or other seafood in place of shrimp and Dungeness crab. Smoked sausage, kielbasa, or chorizo are flavorful alternatives to andouille.
What if I don’t have a packet-style boil mix?
Simply increase the homemade Cajun seasoning and consider adding aromatics like bay leaves and mustard seeds to the cooking liquid for extra depth.
Have Spot Prawn Rolls next time you want a different seafood sandwich!

Serve This With…
- Crusty Bread: Great for sopping up the Cajun butter and seasoned broth.
- Coleslaw: A cool, tangy side to balance the heat and richness.
- Iced Tea or Beer: Refreshing beverages that complement the spices.
This Cajun Crab and Shrimp Boil combines straightforward preparation with lively, layered flavors. From the savory Cajun butter to the well-seasoned seafood and vegetables, it’s a versatile, satisfying recipe designed for sharing and celebrating good company.
More Crab Recipes
-
Dungeness Crab Bisque -
Grilled Crab Cakes -
Traeger Grilled King Crab Legs
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Cajun Crab and Shrimp Boil
This spicy seafood boil brings restaurant-quality flavor home. Use fresh crab and large shrimp, add corn and potatoes, and finish with a buttery Cajun sauce for an unforgettable shared meal.
10 minutes
35 minutes
45 minutes
Ingredients
Homemade Cajun Seasoning
- 2 teaspoons cayenne pepper
- 4 tablespoons paprika
- 4 teaspoons dried oregano
- 2 teaspoons garlic powder
- 2 teaspoons dried thyme
- 1 teaspoon salt
- 1 teaspoon onion powder
- 1 teaspoon white pepper
Crab Boil
- 1 package crab and shrimp boil mix (optional)
- 3 tablespoons homemade Cajun seasoning
- 1 lemon, halved
- 8 cups water
- 1 bottle beer (blonde or amber ale), optional
- 1 pound baby potatoes
- 3 ears corn on the cob, halved
- 2 andouille sausages, cut into 2-inch pieces
- 2 whole Dungeness crabs (or equivalent crab meat)
- 1 pound large shrimp, shells on
Cajun Butter
- 1 stick (8 tablespoons) butter
- 1 tablespoon homemade Cajun seasoning
Instructions
- Mix all the spices for the homemade Cajun seasoning in a bowl and set aside.
- In a large pot, combine water, beer (if using), the boil mix (optional), 3 tablespoons of the Cajun seasoning, and the lemon halves. Bring to a simmer.
- Add baby potatoes, corn, and sausage to the pot and simmer until the potatoes are fork-tender, about 15–20 minutes depending on size.
- While the vegetables cook, melt the butter in a small saucepan and stir in 1 tablespoon of the Cajun seasoning. Keep warm.
- Add the crabs and shrimp to the pot and simmer just until the shrimp turn opaque and the crab is heated through, about 4–6 minutes.
- Drain or transfer everything to a large platter. Spoon the Cajun butter over the seafood, potatoes, corn, and sausage. Serve immediately with crab crackers, forks, and gloves as desired.
Nutrition Information (per serving)
Calories: 470 | Total Fat: 14g | Saturated Fat: 4g | Trans Fat: 0.1g | Unsaturated Fat: 9g | Cholesterol: 219mg | Sodium: 1787mg | Carbohydrates: 49g | Fiber: 11g | Sugar: 8g | Protein: 43g
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