Cajun Seafood Boil

Ingredients

• 4lemons, halved
• 2sweet onions, quartered
• 4Serrano chillies, halved and deseeded
• 2garlic heads, peeled and halved
• 340 g (12 oz)seafood seasoning
• 30 ml (6 tsp)salt
• 6bay leaves
• 1.36 kg (48 oz)red potatoes, halved
• 5Andouille sausages, cut into 5 cm (2-inch) slices
• 6ears of corn, halved
• 1.81 kg (64 oz)jumbo prawns, deveined
• 1.13 kg (40 oz)Alaskan king crab legs

Instructions

1. 1

   Fill the stockpot

   Half-fill a large stockpot fitted with a basket insert with water. Squeeze the lemons into the water, then add the squeezed halves.

2. 2

   Season the broth

   Add the onions, chillies, garlic, seafood seasoning, salt and bay leaves. Bring the water to a boil over medium heat, then lower the heat and simmer for 10 minutes.

3. 3

   Cook the potatoes

   Stir in the potatoes and simmer for 15 minutes.

4. 4

   Add sausage and corn

   Mix in the sausage and corn, then simmer for 5 minutes.

5. 5

   Finish the seafood

   Add the prawns and turn off the heat. Cover the pot and leave them to steep for 5 minutes. Add the king crab legs, making sure the meat is fully submerged, and leave to rest for another 5 minutes.

6. 6

   Drain and serve

   Drain the boil and arrange it on large serving trays. Finish with a light dusting of seafood seasoning.

What is a Cajun seafood boil?

A seafood boil is a communal meal in which seafood and other ingredients are cooked together in a large pot of strongly seasoned water. The style is closely associated with the American Gulf Coast, including Louisiana, where Cajun cooking traditions shape many of its flavours.

This version brings together prawns and king crab with sausage, corn and potatoes. The ingredients go into the pot in stages, helping the vegetables cook through before the more delicate seafood is added.

Nutrition and macros by portion

The nutrition label shows one serving as written: 6900 calories, 570g protein, 480g carbs, 260g fat.

The potatoes and corn provide most of the carbohydrates; the sausage and seafood contribute protein, while the sausage also supplies much of the fat. The quantities listed are very large for one serving, so sharing the boil and adding a fresh salad is a practical way to balance the plate.

Building the seasoned broth

Citrus and aromatics: Squeezing the lemons into the water releases their juice, while the halves, onions, garlic, chillies and bay leaves infuse the broth as it simmers.

Seafood seasoning: This is the main source of the dish’s Cajun-style spice. The stated amount is substantial, so check the seasoning’s saltiness before adding the listed salt if you are adapting the recipe.

Why the ingredients go in stages

Potatoes first: They need the longest cooking time, so they enter after the broth has simmered and cook for 15 minutes before the other solid ingredients.

Sausage and corn next: Their shorter five-minute simmer lets them heat and take on flavour without extending the potatoes’ cooking time.

Seafood last: Prawns steep in the covered, switched-off pot, while the crab legs rest submerged afterwards. This gentler finish helps keep the seafood tender.

Checking for doneness

Potato texture: Check that a fork can pass into a potato half without much resistance before serving. If the potatoes are still firm, they may need more time, though the recipe gives a 15-minute simmer.

Seafood texture: Prawns should turn opaque and firm, not tough. The crab legs are added at the end to warm through in the hot broth rather than being simmered for an extended period.

Getting the timing right

Keep the broth at a gentle simmer after bringing it to the boil, rather than letting it bubble vigorously. Follow the listed intervals for the potatoes, sausage and corn, then use the covered resting periods for the seafood.

The full process includes several simmering and steeping stages, so have the serving trays ready before draining. This also makes it easier to serve the boil while it is hot.

Serving the boil

Arrange the drained ingredients on large trays so guests can reach the seafood, vegetables and sausage. A final dusting of seafood seasoning adds another hit of flavour.

The potatoes, corn and sausage make this a substantial spread on its own. For a simple accompaniment, serve lemon wedges and a fresh green salad alongside it.

Recipe notes & tips

• Use a stockpot large enough to hold the ingredients while leaving room to stir.
• Make sure the crab meat is submerged during its five-minute rest.
• Keep the pot covered while the prawns steep.
• Set out trays before draining so the hot ingredients can be served promptly.
• Taste the broth before serving if you are adjusting the seasoning in a future batch.

Variations

• Add extra lemon: Serve with fresh lemon wedges for a brighter finish.
• Adjust the heat: Use fewer Serrano chillies for a milder broth.
• Swap the crab: Use another type of crab leg if king crab is unavailable.
• Add shellfish: Include mussels or clams, adding them with the seafood and checking that they open.
• Change the sausage: Use another smoked sausage in place of Andouille.

Common mistakes to avoid

• Boiling too vigorously: A rolling boil can break up the ingredients; reduce the heat to a simmer after the broth comes to the boil.
• Adding everything at once: The seafood can overcook before the potatoes are tender; follow the staged cooking order.
• Leaving potatoes undercooked: Check their texture before moving on, as larger halves may need longer.
• Overcooking the prawns: Turn off the heat before adding them and leave them covered for the stated five minutes.
• Leaving crab above the broth: Submerge the meat so it warms through evenly during its five-minute rest.

How to store

Refrigerate leftovers in a covered container within two hours and use within 2 days. Reheat gently in a covered pan with a splash of water or broth until piping hot, taking care not to cook the seafood for too long.

Frequently asked questions