Cajun Seafood Boil with Garlic Butter
A festive one-pot Cajun seafood boil loaded with shrimp, crab, smoked sausage, corn, and potatoes simmered in a bold, spicy broth and finished with a rich garlic butter sauce. Perfect for casual gatherings, game days, and backyard parties.
Ingredients
- 4-5 quarts water enough to generously cover ingredients in a large stockpot
- 1 cup dry white wine optional; a basic Sauvignon Blanc works
- 1 large lemon halved, plus extra lemon wedges for serving
- 1 large onion yellow or sweet, quartered
- 1 head garlic halved crosswise, no need to peel
- 3-4 tablespoons Cajun seasoning store-bought or homemade; adjust for heat and saltiness
- 2 tablespoons kosher salt reduce to 1 tablespoon if Cajun seasoning is very salty
- 2-3 bay leaves
- 1 teaspoon whole black peppercorns optional
- 2 pounds small red potatoes or baby Yukon Gold potatoes whole or halved if large
- 4 ears corn on the cob cut into 2–3 inch chunks; frozen corn is fine, add 2 extra minutes if frozen
- 1-1.5 pounds smoked sausage andouille traditional; kielbasa or turkey sausage also work; sliced into 1–2 inch pieces
- 2 pounds large shrimp shell-on, deveined, 16–20 count; shells help keep them juicy
- 1-1.5 pounds crab legs or crab clusters snow crab or king crab, pre-cooked frozen is fine
- 1 cup unsalted butter 2 sticks, for garlic butter sauce
- 6-8 cloves garlic minced, for garlic butter sauce
- 1-2 tablespoons Cajun seasoning for garlic butter sauce, to taste
- 1 teaspoon paprika smoked paprika if you like a deeper, smoky note
- 1/2 teaspoon red pepper flakes optional, for extra spice
- 1-2 tablespoons lemon juice freshly squeezed, for garlic butter sauce
- 2 tablespoons fresh parsley chopped
- salt and freshly ground black pepper to taste, for garlic butter sauce
- extra Cajun seasoning for sprinkling on top when serving
- lemon wedges for serving
- hot sauce such as Crystal, Tabasco, or any Louisiana-style hot sauce, for serving
Instructions
- Fill a large 12-quart stockpot with 4–5 quarts of water and the white wine, if using. Squeeze the juice from the halved lemon into the pot, then add the lemon halves. Add the quartered onion, halved garlic head, 3–4 tablespoons Cajun seasoning, kosher salt, bay leaves, and peppercorns. Bring to a rolling boil over high heat. Once it has simmered a few minutes, taste the broth; it should be bold and salty like a strong soup. Add more Cajun seasoning or salt if needed.4-5 quarts water, 1 cup dry white wine, 1 large lemon, 1 large onion, 1 head garlic, 3-4 tablespoons Cajun seasoning, 2 tablespoons kosher salt, 2-3 bay leaves, 1 teaspoon whole black peppercorns
- Carefully add the potatoes to the boiling liquid. Reduce the heat slightly to maintain a strong simmer and cook for 10–12 minutes, until the potatoes are just starting to get tender when pierced with a fork but not fully soft. Halve any larger potatoes so they cook evenly.2 pounds small red potatoes or baby Yukon Gold potatoes
- Add the corn pieces and sliced smoked sausage to the pot. Return to a gentle boil and cook for another 8–10 minutes, allowing the sausage to flavor the broth and the corn to soak up the Cajun seasoning.4 ears corn on the cob, 1-1.5 pounds smoked sausage
- Add the crab legs or clusters, submerging them as much as possible. Cook for 5–7 minutes. If using pre-cooked frozen crab, you are mainly heating them through and infusing them with flavor. Gently stir with a long-handled spoon or tongs if the pot is crowded.1-1.5 pounds crab legs or crab clusters
- Add the shrimp last. Stir gently and cook for 2–4 minutes, just until the shrimp turn pink and opaque and curl into a loose “C” shape. Do not overcook; overdone shrimp curl into a tight “O” and become rubbery.2 pounds large shrimp
- Turn off the heat and let the shrimp, crab, sausage, potatoes, and corn sit in the seasoned broth for about 5 minutes. This brief rest allows flavors to absorb without overcooking the seafood.
- While the boil rests, melt the butter in a small saucepan over low heat. Add the minced garlic and cook gently for 1–2 minutes until fragrant but not browned. Stir in 1–2 tablespoons Cajun seasoning, paprika, and red pepper flakes if using. Remove from the heat and stir in the lemon juice, chopped parsley, and a pinch of salt and black pepper. Taste and adjust seasoning and lemon to your liking.1 cup unsalted butter, 6-8 cloves garlic, 1-2 tablespoons Cajun seasoning, 1 teaspoon paprika, 1/2 teaspoon red pepper flakes, 1-2 tablespoons lemon juice, 2 tablespoons fresh parsley, salt and freshly ground black pepper
- Place a large colander in the sink and carefully pour the contents of the pot into it, draining off the broth and catching all the solids. Discard the bay leaves, onion pieces, lemon halves, and garlic head.
- Cover a large table or tray with clean newspaper, butcher paper, or parchment. Spread the drained shrimp, crab, potatoes, sausage, and corn over the top. Drizzle generously with the warm garlic butter sauce and sprinkle with extra Cajun seasoning if desired. Serve immediately with lemon wedges and hot sauce on the side.extra Cajun seasoning, lemon wedges, hot sauce
Notes
Serves 6–8 as a main course, or more if you add sides like coleslaw, cornbread, or green salad. Taste the broth before adding seafood; it should be boldly seasoned. Adjust Cajun seasoning to manage heat and salt levels. For a milder boil, use less Cajun seasoning in the pot and let guests add extra seasoning and hot sauce at the table.
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