Cajun Louisiana Style Shrimp Boil

If you ask me, a Louisiana-style shrimp boil is one of the best ways to feed a crowd.

This one-pot meal brings together plump shrimp, smoky andouille sausage, and sweet corn in a spicy Cajun broth. The vegetables soak up all that seasoned cooking liquid while everything steams together.

It’s served with garlic butter for dipping and a zippy Creole sauce that adds a tangy kick. The whole thing gets dumped out on a table lined with newspaper for a true Louisiana experience.

It’s a fun, hands-on dinner that’s perfect for casual gatherings and warm evenings with friends.

What Kind of Shrimp Should I Use?

For a shrimp boil, you’ll want to use large or jumbo shrimp since they hold up better during boiling and are easier to peel. You can buy them either shell-on or already peeled, but I’d recommend keeping the shells on because they add extra flavor to the boil and help protect the shrimp from overcooking. Fresh shrimp is great if you can find it, but frozen shrimp works just as well – just make sure to thaw them completely in the fridge before adding them to the pot. Whether you go with wild-caught or farm-raised is totally up to your preference and budget, as both will give you a delicious result in this recipe.

Options for Substitutions

This shrimp boil is pretty forgiving when it comes to swaps, so here are some options if you need to make changes:

• Cajun seafood boil spice: If you can’t find a pre-made seafood boil spice, make your own by mixing Old Bay seasoning with some cayenne pepper, or combine paprika, garlic powder, onion powder, cayenne, and black pepper to taste.
• Andouille sausage: Can’t find andouille? Try kielbasa or smoked sausage instead. They won’t have quite the same spicy kick, so you might want to add a bit more Cajun spice to the pot.
• Sweet potatoes: Regular red or Yukon gold potatoes work great here too. Just cut them into similar-sized chunks so they cook evenly with everything else.
• Shrimp: While fresh shrimp is ideal, frozen works just fine – just thaw them completely before adding to the boil. You can also use crawfish if you want to go really traditional Louisiana style.
• Creole mustard: For the dipping sauce, whole grain mustard or spicy brown mustard makes a good substitute if you don’t have Creole mustard on hand.
• Green bell pepper: Feel free to use any color bell pepper you have, or skip it entirely if you’re not a fan – it’s mainly there for flavor in the boiling liquid.

Watch Out for These Mistakes While Cooking

The biggest mistake people make with shrimp boils is overcooking the shrimp, which turns them rubbery and tough – that’s why you remove the pot from heat before adding them and let them cook gently in the residual heat for just 4 to 5 minutes.

Another common error is adding all the ingredients at once, but timing matters here since sweet potatoes and sausage need more cooking time than corn, and corn needs more time than shrimp.

Don’t skip the 15-minute simmering step for your seasoning base with the aromatics, as this builds the flavor foundation that everything else will absorb.

Finally, make sure your water is at a rolling boil before you start adding ingredients, and use enough liquid to cover everything comfortably – if items are sticking out of the water, they won’t cook evenly.

What to Serve With Shrimp Boil?

A shrimp boil is pretty much a complete meal on its own since you’ve got your protein, veggies, and carbs all in one pot, but I love adding a few extras to round things out. Crusty French bread or dinner rolls are perfect for soaking up all that spicy, buttery goodness at the bottom of your bowl. A simple coleslaw with a tangy vinegar-based dressing helps cool things down if the Cajun spices are running hot, and it adds a nice crunch to the meal. For dessert, keep it light and refreshing with something like lemon bars or key lime pie to balance out all those rich, savory flavors.

Storage Instructions

Store: Keep your leftover shrimp boil in an airtight container in the fridge for up to 3 days. Store the shrimp and vegetables separate from the liquid if possible, since they can get a bit mushy sitting in all that broth. The remoulade sauce will keep in a sealed container in the fridge for about a week.

Freeze: I don’t recommend freezing the shrimp and vegetables since they lose their texture, but you can definitely freeze any leftover andouille sausage for up to 2 months. Just wrap it tightly in plastic wrap and then in foil or a freezer bag.

Enjoy Cold: Here’s a fun tip – leftover shrimp boil is actually delicious served cold the next day! Just pull everything out of the fridge, let it sit for about 10 minutes to take the chill off, and enjoy it with some fresh remoulade sauce. It makes for a great quick lunch or snack.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 3500-3900
• Protein: 225-250 g
• Fat: 210-240 g
• Carbohydrates: 260-300 g

Ingredients

For the boil:

• 3.5 quarts water
• 1/3 cup Cajun seafood boil spice (I use Zatarain’s for the most authentic flavor)
• 3 stalks celery (cut into 4-inch pieces)
• 1 large onion (quartered with skins removed)
• 1 large green bell pepper (cut into 2-inch chunks)
• 6 garlic cloves (smashed to release oils)
• 1 head garlic
• 5 sprigs thyme
• 1/2 lb sweet potatoes (cut into 2-inch cubes)
• 1.25 lb andouille sausage (sliced into 1-inch thick rounds)
• 4 ears corn (shucked and snapped into halves)
• 2.25 lb shrimp
• 1 lemon (quartered)
• 1 bay leaf

For the garlic butter:

• 3/4 cup butter (I prefer Kerrygold unsalted butter for this)
• 2 garlic cloves
• 3/4 tsp thyme
• 3/4 tsp Cajun spice

For the spicy remoulade:

• 1 cup mayonnaise (I prefer Hellmann’s mayonnaise)
• 2.5 tbsp Creole mustard
• 2 tbsp ketchup
• 1 tbsp hot sauce
• 4 garlic cloves
• 2 tsp thyme
• 1.5 tsp Worcestershire sauce
• 1 tsp paprika
• 1/2 tsp cayenne

Step 1: Build the Aromatic Boil Base

• 3.5 quarts water
• 1/3 cup Cajun seafood boil spice
• 3 stalks celery
• 1 large onion
• 1 large green bell pepper
• 6 garlic cloves
• 1 bay leaf
• 1 lemon
• 5 sprigs thyme

Bring 3.5 quarts of water to a rolling boil in a large pot.

Add the Cajun seafood boil spice, celery, quartered onion, green bell pepper, smashed garlic cloves, bay leaf, lemon quarters, and thyme sprigs.

Bring back to a boil, then reduce heat to medium and simmer for 15 minutes to allow the aromatics to fully infuse the broth and develop deep, authentic Louisiana flavor.

I like using smashed garlic cloves at this stage rather than minced—they release their oils more effectively into the liquid.

Step 2: Add Sausage and Sweet Potatoes

• 1.25 lb andouille sausage
• 1/2 lb sweet potatoes

Add the sliced andouille sausage and sweet potato cubes to the simmering broth.

The sausage will release its smoky, spiced oils into the liquid, further building the flavor base.

Maintain a gentle simmer and cook for 15 to 20 minutes until the sweet potatoes are nearly tender but still hold their shape.

Start preparing the butter sauce and remoulade while these ingredients cook (see Steps 3 and 4).

Step 3: Prepare the Garlic Butter Sauce

• 3/4 cup butter
• 2 garlic cloves
• 3/4 tsp thyme
• 3/4 tsp Cajun spice

While the potatoes and sausage cook, melt 3/4 cup butter in a small saucepan over low heat.

Add 2 minced garlic cloves, 3/4 teaspoon thyme, and 3/4 teaspoon Cajun spice.

Stir gently until fragrant and the garlic softens without browning, about 2 to 3 minutes.

Keep warm on low heat until serving.

Step 4: Mix the Remoulade Sauce

• 1 cup mayonnaise
• 2.5 tbsp Creole mustard
• 2 tbsp ketchup
• 1 tbsp hot sauce
• 4 garlic cloves
• 2 tsp thyme
• 1.5 tsp Worcestershire sauce
• 1 tsp paprika
• 1/2 tsp cayenne

In a small bowl, whisk together 1 cup mayonnaise, 2.5 tablespoons Creole mustard, 2 tablespoons ketchup, 1 tablespoon hot sauce, 4 minced garlic cloves, 2 teaspoons thyme, 1.5 teaspoons Worcestershire sauce, 1 teaspoon paprika, and 1/2 teaspoon cayenne until smooth and well combined.

Taste and adjust seasonings if needed.

Set aside at room temperature until serving.

I love making this tangy sauce ahead since it actually tastes better as the flavors marry while it sits.

Step 5: Cook Corn and Finish Shrimp

• 4 ears corn
• 2.25 lb shrimp

When the sweet potatoes are nearly tender, add the corn halves to the boil and cook for 5 minutes.

Remove the pot from heat and immediately stir in the shrimp, distributing them evenly throughout the broth.

Cover the pot and let it sit undisturbed for 4 to 5 minutes—residual heat will gently poach the shrimp to perfect tenderness without overcooking.

The shrimp will turn pink and opaque when done.

Step 6: Drain and Serve

• drained shrimp boil from Step 5
• garlic butter sauce from Step 3
• remoulade sauce from Step 4

Using a large colander, carefully drain the shrimp boil mixture, reserving some of the flavorful broth if desired for serving alongside.

Transfer the drained shrimp, sausage, corn, and sweet potatoes to a large platter or serving bowl.

Drizzle generously with the warm garlic butter sauce from Step 3 and serve with the remoulade sauce from Step 4 on the side.

Provide plenty of napkins—this is authentic Louisiana comfort food at its finest!