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A close-up of a vibrant Cajun Seafood Boil Recipe spread out on a sheet pan, featuring corn on the cob, potatoes and sausage, shrimp, crawfish, and various crab and lobster pieces, all generously seasoned with herbs and spices.

10 Secrets to the Best Cajun Seafood Boil Recipe

By Nancy
Looking for a foolproof Cajun Seafood Boil Recipe? Get step-by-step instructions to create a flavorful, juicy seafood feast at home. Try it now!
Prep Time 25 minutes
Cook Time 45 minutes
Total Time 1 hour 15 minutes
Course Main Course
Cuisine Cajun, Southern, American
Servings 6
Calories 485 kcal

Ingredients
  

  • 2 lbs crawfish or substitute with extra shrimp if unavailable
  • 2 lbs large shrimp 21-25 count, shell-on for maximum flavor
  • 1 lb mussels scrubbed clean, debearded
  • 1 lb littleneck clams purged in saltwater for 30 minutes
  • 4 blue crabs live or pre-cooked, your choice
  • 1 lb baby potatoes red or Yukon Gold work beautifully
  • 4 ears corn husked, broken in half
  • 1 lb andouille sausage sliced into 2-inch pieces
  • 2 whole onions quartered, don’t overthink this
  • 1 head garlic halved horizontally
  • 3 tablespoons Old Bay seasoning
  • 2 tablespoons Cajun seasoning blend
  • 1 tablespoon cayenne pepper adjust to taste
  • 2 bay leaves
  • 1 lemon halved, plus extra wedges for serving

Instructions
 

Step 1: Fire Up Your Flavor Base

  • Fill your stockpot with water (about 6 quarts). Toss in onions, garlic, bay leaves, and half your spice blend. Bring to a rolling boil that sounds like a freight train coming through your kitchen.
  • Let this simmer for 10 minutes while you grab a beer. You’re building layers of flavor that would make my grandmother weep with joy.

Step 2: Add the Sturdy Ingredients First

  • Drop in potatoes and sausage with a satisfying splash. These tough guys need the longest cooking time. Set your timer for 10 minutes – no cheating.
  • Your potatoes should yield slightly to a fork but still have backbone. Nobody wants mushy potatoes floating around like sad little clouds.

Step 3: Corn Goes In Next

  • Add those corn pieces to the bubbling chaos. Cook for exactly 5 minutes while you start clearing counter space for the feast ahead.
  • Watch the kernels plump up like tiny golden pillows soaking up all that spicy goodness.

Step 4: Seafood Time 

  • Add crabs first (they’re the divas and need longest), followed by clams and mussels. Wait 3 minutes – I know it feels like forever. Then add crawfish. Finally, slide in those beautiful shrimp last.
  • Let me tell you something – timing here separates the pros from the weekend warriors. Overcooked seafood turns into expensive rubber bands.

Step 5: The Final Countdown

  • Cook everything together for 3-4 minutes until shrimp blush pink and mussels yawn open wide. Your kitchen should smell like heaven’s seafood counter by now.
  • Kill that heat immediately and add remaining seasonings plus a generous squeeze of lemon. Don’t be shy.

Notes

Per serving (serves 6-8):
  • Calories: 485
  • Protein: 42g
  • Carbohydrates: 28g
  • Fat: 24g
  • Sodium: 1,850mg
  • Omega-3 fatty acids: 
  • Vitamin C: 
Keyword seafood boil, summer, party, spicy, Cajun, Southern, holiday, family style