Onion Boil Cajun Shrimp Sausage

Featured in: Main Dishes

This Southern-style seafood boil features large shell-on shrimp, spicy sausage, corn, potatoes, and onions, all simmered together with a robust blend of Cajun spices. Aromatics like garlic, lemon, and bay leaves add depth while melted butter and fresh parsley finish the dish with richness and brightness. Ideal for sharing, this easy-to-make meal brings festive flavors perfect for gatherings.

Updated on Fri, 13 Feb 2026 10:15:00 GMT
Cajun shrimp and sausage boil with tender potatoes, sweet corn, and onions in a spicy broth.  Save
Cajun shrimp and sausage boil with tender potatoes, sweet corn, and onions in a spicy broth. | cheerfulchefs.com

My neighbor showed up one Saturday with a cooler full of shrimp and a grin that meant trouble, insisting we throw together a proper low country boil before the sun got too high. I'd never actually made one before, just eaten them at festivals, and honestly I was nervous about timing everything so nothing turned to mush. But watching that pot bubble away, the kitchen filling with garlic and lemon and spicy heat, I realized this dish isn't complicated at all, just confident. It's the kind of food that demands you gather people around and eat with your hands, no pretense, just pure joy.

I made this for my daughter's birthday party last summer, and I'll never forget the moment everyone went completely silent when I dumped the whole thing onto that newspaper-covered table in the backyard. The shrimp were this perfect coral pink, the sausage glistening, corn kernels catching the afternoon light, and someone just said 'whoa' under their breath. That's when I knew this recipe was special, not because it was fancy, but because it made people feel something.

Ingredients

  • Large raw shrimp, shell-on and deveined: The shells protect the delicate meat and flavor the water beautifully, so don't skip that step even though it feels like extra work.
  • Andouille sausage, sliced into 1-inch pieces: This smoky, spicy sausage is the backbone of the whole dish, infusing the broth with character that store-bought seasoning alone can't match.
  • Large yellow onions, quartered: Onions soften and sweeten as they boil, becoming almost caramelized and adding natural body to the cooking liquid.
  • Corn, cut into thirds: Fresh corn adds sweetness and texture, cooking just enough to stay tender without becoming mushy if you time it right.
  • Small red potatoes, halved: Red potatoes have thinner skin and hold their shape better than russets, staying creamy inside while staying intact.
  • Garlic cloves, smashed: Smashing releases the oils and lets the garlic infuse more evenly throughout the boiling water without overwhelming any single bite.
  • Lemon halves: The acidity brightens everything and cuts through the richness of the butter and sausage in a way that feels essential.
  • Cajun seasoning: This is your flavor foundation, so use a brand you actually like or make your own blend if you have the spices on hand.
  • Bay leaves: These add an earthy depth that rounds out all the bold spice and keeps the flavor from feeling one-dimensional.
  • Kosher salt and black peppercorns: The peppercorns stay whole so they season gently without turning the water bitter.
  • Unsalted butter, melted: This is your finishing touch, so use good butter, the kind that tastes like cream and sunshine.
  • Fresh parsley and lemon wedges: These aren't just garnish, they're the final flavor burst that makes you reach for another handful.

Instructions

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Build your flavorful base:
Fill a large stockpot with 4 quarts of water and add the onions, garlic, squeezed lemon halves, Cajun seasoning, bay leaves, salt, and peppercorns. Bring everything to a rolling boil over high heat, letting the aromatics release their flavors into the water for a good minute or two before moving on.
Start with the potatoes:
Add the halved potatoes and let them boil for 15 minutes until they're just beginning to soften on the outside but still have some resistance when you poke them. This timing is crucial because undercooked potatoes taste raw, but overcooked ones dissolve into the broth.
Add corn and sausage:
Toss in the corn pieces and sausage slices and let everything boil together for 10 minutes, stirring occasionally so the sausage releases its oils evenly. You'll notice the broth deepening in color and richness during this time.
Finish with the shrimp:
Add the shrimp and watch the pot carefully, cooking for just 3 to 4 minutes until they turn that beautiful coral pink and the meat firms up. Don't walk away here, shrimp go from perfect to rubbery in seconds.
Drain and serve:
Pour the entire contents through a large colander, discarding the bay leaves and lemon halves, then spread everything onto a newspaper-lined table or oversized serving platter. Drizzle with melted butter, shower with fresh parsley, and serve immediately with lemon wedges on the side.
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Southern-style onion boil with juicy shrimp, andouille sausage, and corn on the cob, seasoned with bold Cajun spices.  Save
Southern-style onion boil with juicy shrimp, andouille sausage, and corn on the cob, seasoned with bold Cajun spices. | cheerfulchefs.com

There's something about eating with your hands, butter running down your wrists, laughter filling the table, that transforms a meal into a memory. This dish does that every single time.

The Secret to Perfect Timing

I used to add everything at once, like some kind of soup, and ended up with mushy potatoes and overcooked shrimp. The real trick is respecting the different cooking times, letting each ingredient have its moment. Potatoes need the most time since they're dense, corn just needs a gentle warm through, and shrimp are basically done the moment they hit the water. Once I started thinking of this as a sequence instead of a dump-and-go situation, everything came together perfectly every time.

Why This Feeds a Crowd So Well

This isn't a dish that demands fancy plating or careful portioning, it's meant to be abundant and generous. One pot feeds six people easily, and honestly it looks even better when it's piled high on that newspaper-lined table, everything glistening and steaming. The communal aspect is built right into the recipe, there's no pretense, just pure celebration of good food and good company.

Making It Your Own

The beauty of a boil is its flexibility, you can swap in kielbasa if andouille isn't available, add extra heat with cayenne pepper if you like things spicy, or throw in whatever vegetables are at the farmer's market. I've made versions with baby red potatoes cut smaller, versions with extra garlic because I can never use enough, and versions with twice the lemon because citrus is my weakness. The framework stays the same but the dish becomes yours.

  • Serve with crusty bread to soak up every drop of that buttery, seasoned broth that pools on your plate.
  • Pair it with cold beer or crisp white wine, something refreshing to cut through the richness and spice.
  • Make extra because people always come back for seconds, and there's no such thing as leftovers with this dish.
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Festive shrimp and sausage boil featuring red potatoes, sweet onions, and corn, all cooked with zesty Cajun seasoning. Save
Festive shrimp and sausage boil featuring red potatoes, sweet onions, and corn, all cooked with zesty Cajun seasoning. | cheerfulchefs.com

This is the kind of recipe that reminds you why you love cooking in the first place, no stress, just good food and people you care about. Make it, make it often, and watch it become the dish everyone asks for.

Recipe FAQs

What type of sausage works best with this dish?

Andouille or smoked sausage are ideal for adding a smoky, spicy flavor that complements the shrimp and vegetables well.

Can I use peeled shrimp instead of shell-on shrimp?

Shell-on shrimp help retain moisture and add flavor while cooking, but peeled shrimp can be used if preferred, with slightly less cooking time.

How do I adjust the spice level of the boil?

Adding extra cayenne pepper or increasing the Cajun seasoning boosts heat, while reducing these ingredients results in a milder flavor.

What sides pair well with this cooking method?

Crusty bread soaks up the savory juices nicely, and crisp salads or chilled beverages like light beer or white wine complement the meal.

Can this dish be prepared ahead of time?

For best texture and flavor, it’s recommended to serve immediately after cooking, though leftovers can be stored and gently reheated.

Onion Boil Cajun Shrimp Sausage

Classic Southern boil combining shrimp, sausage, potatoes, corn, and onions with bold Cajun seasoning.

Prep Time
15 minutes
Cook Time
35 minutes
Overall Time
50 minutes
Creator Ruby Smiles

Recipe Type Main Dishes

Skill Level Easy

Cuisine Background Southern (USA)

Portions 6 Serves

Dietary Preferences Gluten-Free Option

What You’ll Need

Seafood

01 2 pounds large raw shrimp, shell-on, deveined

Meats

01 1 pound andouille sausage or smoked sausage, sliced into 1-inch pieces

Vegetables

01 2 large yellow onions, quartered
02 4 ears corn, cut into thirds
03 1.5 pounds small red potatoes, halved

Seasoning & Aromatics

01 4 cloves garlic, smashed
02 1 lemon, halved
03 1/4 cup Cajun seasoning
04 2 bay leaves
05 1 tablespoon kosher salt
06 1 teaspoon black peppercorns

To Serve

01 4 tablespoons unsalted butter, melted
02 Fresh parsley, chopped
03 Lemon wedges

Step-by-Step Guide

Step 01

Prepare Boiling Broth: Fill a large stockpot with 4 quarts of water. Add quartered onions, smashed garlic, lemon halves (squeezed into the water and then dropped in), Cajun seasoning, bay leaves, kosher salt, and black peppercorns. Bring to a boil over high heat.

Step 02

Cook Potatoes: Add halved red potatoes to the boiling broth and cook for 15 minutes until just beginning to soften.

Step 03

Add Corn and Sausage: Add corn pieces and sliced sausage to the pot. Continue boiling for 10 more minutes.

Step 04

Cook Shrimp: Add shrimp and cook for 3 to 4 minutes, or until shrimp are pink and just cooked through.

Step 05

Drain and Arrange: Drain the mixture through a large colander. Discard bay leaves and lemon halves. Spread the contents on a newspaper-lined table or large serving platter.

Step 06

Finish and Serve: Drizzle with melted butter and sprinkle with fresh parsley. Serve immediately with lemon wedges.

Tools You’ll Need

  • Large stockpot
  • Colander
  • Sharp knife
  • Cutting board

Potential Allergens

Inspect ingredients for specific allergens and contact a professional for concerns.
  • Contains shellfish (shrimp)
  • May contain dairy (butter)
  • May contain sulfites (sausage)
  • Always check sausage labels for gluten and other allergens

Nutritional Details (Per Serving)

Provided as supportive info; always cross-check with your healthcare provider.
  • Calories: 480
  • Fats: 23 grams
  • Carbohydrates: 36 grams
  • Proteins: 32 grams