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Cajun Seafood Boil with Garlic Butter Sauce Recipe

4.8 from 131 reviews

This Cajun Seafood Boil with Garlic Butter Sauce is a flavorful and fun one-pot meal featuring a medley of shrimp, snow crab, andouille sausage, baby potatoes, corn, and optional hard-boiled eggs. Simmered in a seasoned broth with Creole Cajun spices, beer, and lemon, then finished with a rich garlic butter sauce infused with Old Bay seasoning and smoked paprika, this dish delivers a bold Southern-inspired feast perfect for gatherings or festive occasions.

Ingredients

Scale

Boil Base

  • 3 quarts water
  • 1 (12-ounce) can of beer (optional but highly recommended)
  • 3 tablespoons Creole Cajun Seasoning (homemade or store-bought)
  • 1 tablespoon Old Bay seasoning
  • Hot sauce, to taste
  • 1 medium yellow onion, roughly sliced into half-moons
  • 1 large lemon, cut into wedges plus more for serving

Main Ingredients

  • 12 ounces andouille sausage, sliced into rounds
  • 1 lb baby potatoes, red or gold (or a mix)
  • 1 lb pre-cooked snow crab leg clusters, fresh or frozen
  • 11 ½ lbs jumbo shrimp, deveined, shell-on or peeled
  • 46 ears sweet corn on the cob (mini corn recommended)
  • 46 hard boiled eggs (optional)

Garlic Butter Sauce

  • 1 cup (2 sticks) unsalted butter
  • 10 cloves garlic, finely minced or pressed
  • 2 tablespoons freshly squeezed lemon juice
  • 1 tablespoon Old Bay seasoning
  • 1 tablespoon fresh chopped parsley
  • 1 teaspoon Creole Cajun Seasoning (homemade or store-bought)
  • 1 teaspoon smoked paprika
  • Hot sauce, to taste

Instructions

  1. Prepare the boil: In an extra large stockpot or Dutch oven (about 10 quarts or larger) over medium-high heat, combine the water and beer (if using). Bring the liquid to a boil, then season with Creole Cajun seasoning, Old Bay seasoning, and a few dashes of hot sauce to taste. Add the sliced onion and lemon wedges, stirring well to mix all flavors. Let the mixture boil for 15 minutes to develop the seasoned broth.
  2. Add the andouille & potatoes: Carefully add the sliced andouille sausage and baby potatoes into the pot. Stir to fully combine with the boil. Cook for 15-20 minutes or until the potatoes are just about fork-tender, ensuring the sausage imparts its smoky flavor into the broth.
  3. Add the seafood & corn: Gently nestle the snow crab leg clusters, jumbo shrimp, and corn on the cob into the pot. Make sure all ingredients are fully submerged in the broth, carefully stirring to combine. Continue boiling for another 5-7 minutes until the shrimp turn pink and are cooked through. While the boil cooks, prepare the garlic butter sauce.
  4. Make the garlic butter sauce: On a separate burner, melt the butter in a small saucepan over medium heat. Add the minced garlic, freshly squeezed lemon juice, Old Bay seasoning, chopped parsley, Creole Cajun seasoning, smoked paprika, and hot sauce to taste. Stir often and simmer the sauce for 5-7 minutes until fully combined and fragrant, then remove from heat.
  5. Assemble Cajun seafood boil with sauce: Line a large baking sheet with foil, parchment paper, or newspaper for easy cleanup. Using a spider strainer, remove the seafood boil contents from the pot and transfer them to the prepared baking sheet. Include the hard boiled eggs if using. Discard the onion and lemon bits from the broth. If desired, thin the garlic butter sauce with some broth to preferred consistency. Pour the sauce generously over the seafood boil and toss with your hands or utensils to coat everything evenly in the rich buttery sauce.
  6. Serve seafood boil: Serve the Cajun seafood boil directly from the baking sheet for a casual, communal experience or plate individually if preferred. Offer lemon wedges on the side to squeeze over the seafood. Encourage guests to savor the messy, flavorful feast and mop up any leftover garlic butter sauce for maximum enjoyment.

Notes

  • Use disposable gloves when tossing the seafood in the garlic butter sauce to keep hands clean and protected from spicy seasonings.
  • If you want a thinner garlic butter sauce, add some of the seafood boil broth until you reach the desired consistency.
  • Pre-cooked snow crab can be fresh or frozen; if frozen, thaw before adding to the boil.
  • Jumbo shrimp can be cooked with shells on for more flavor, peeled if preferred for easier eating.
  • Hard boiled eggs are optional but add a traditional and tasty element to the boil.
  • Adjust hot sauce to your preferred spice level throughout the cooking and sauce preparation.
  • This recipe works best with a large 10-quart or bigger stockpot or a Dutch oven to fit all ingredients comfortably.

Keywords: Cajun seafood boil, shrimp boil, garlic butter sauce, seafood recipe, Cajun spices, andouille sausage, snow crab, shrimp, corn on the cob, baby potatoes