This Cajun seafood boil in a bag is everything you love about a seafood boil: crab legs, shrimp, lobster, sausage, corn, and potatoes drenched in a buttery garlic Cajun sauce, with almost none of the mess. Everything finishes in the bag, so the flavor stays locked in, and your kitchen stays clean.
Recipe Highlights
- Prep Time: 30 minutes
- Cook Time: 40 minutes
- Servings: 6
- Key Ingredients: Crab legs, shrimp, lobster tails, andouille sausage, corn, potatoes, Cajun garlic butter
- Who This Recipe Is For: Anyone who wants a restaurant-style seafood boil at home without the big pot and the big cleanup.
- Variations: Swap in mussels, clams, or scallops; dial the heat up or down.
The first time I made a seafood boil for family, I loved the feast but not the mountain of pots after. So I started doing the whole thing in an oven bag, and it changed everything. The seafood steams in that garlic butter sauce and soaks up every bit of flavor, and when we are done eating, there is barely anything to wash. Now this is how I always make it when people come over.
Love a seafood spread? Pair it with my crispy baked potato wedges, or try my Rasta pasta, shrimp scampi without wine, and crispy pan-seared whole red snapper.
What Is a Seafood Boil?
A seafood boil is a Southern and Cajun tradition where shellfish, sausage, corn, and potatoes are cooked together in one heavily seasoned pot, then tossed in a spicy, buttery sauce and poured out for everyone to share. My version cooks it in an oven bag instead of a giant pot, so the seafood traps all the sauce and steam, and cleanup is almost nothing.
Why You’ll Love This Recipe
- Restaurant flavor at home: That bold, buttery, garlicky Cajun sauce.
- Barely any cleanup: Everything finishes in one bag.
- Feeds a crowd: Perfect for gatherings and special dinners.
- Totally customizable: Use whatever seafood you love and set your own heat.
Jump to:
Recipe Ingredients
- Seafood: Crab legs, deveined peeled shrimp, and lobster tails.
- Eggs: For extra protein in the boil.
- Vegetables: Corn on the cob, baby potatoes, garlic, and onion.
- Andouille sausage: The smoky, spicy Cajun staple.
- Seasonings: Old Bay, Cajun seasoning, paprika, black pepper, and cayenne.
- Hot sauce: For your preferred heat level.
- Lemon juice: For brightness.
- Butter: The base of the rich sauce.
- Parsley: Fresh, to finish..
Check recipe card for quantities.
Variations & Substitutions
- More seafood: Add scallops, mussels, clams, or snow crab.
- Different heat: Use Creole, lemon pepper, or your own dry rub.
- Thai-style twist: Swap the Cajun and Old Bay for lemongrass, galangal, Thai chili, coconut milk, and fish sauce.
- No oven bag? Toss everything in the sauce in a foil-lined pan, then cover tightly with foil.
How to Make Seafood Boil in a Bag
Preheat the oven to 350°F.
- Boil the base. Bring a pot of water to a boil with Cajun seasoning, Old Bay, and salt. Add the corn, baby potatoes, and eggs. Boil for 15 minutes, until the potatoes are fork-tender. Add the lobster tails for the last 5 minutes. Peel the eggs and set everything aside.
- Add a little oil to a pan and brown the sausage for about 5 minutes. Remove and set aside.
- There will be little oil left in the pan from the sausage. Sauté the onion and garlic for about 3 minutes. Add the butter and melt. Add the remaining seasonings and stir till combined.
- Adjust the hot sauce and cayenne pepper to your desired heat level. Add the broth and simmer for about 2 minutes.
- Fill the bag. Prep your oven bag per its instructions (some need a little flour inside so they don’t burst). Add all the cooked ingredients plus the shrimp and lobster, then pour the sauce over. Save some sauce for dipping.
- Seal and bake. Tie the bag, make a small slit so steam escapes, set it on a baking sheet or roasting pan, and bake for 10 minutes. Let it cool enough to open, pour onto a tray, sprinkle with parsley, and serve with the reserved sauce.
How Long to Cook Each Seafood
Different seafood cooks at different speeds, so add them in the right order:
- Lobster tails: 8 to 12 minutes
- Crab legs: 6 to 8 minutes (they are usually precooked, so they just need heating)
- Shrimp: 2 to 3 minutes, until they turn opaque and curl into a C
- Clams or mussels: 5 to 10 minutes, until they open
In this recipe, the pot boil and the short bake handle all of this, but it helps to know so nothing turns rubbery.
Storage and Reheating
Store leftovers in an airtight container in the fridge for up to 2 days. Reheat gently in a pan over medium heat with a little butter to keep the seafood moist. Skip the microwave; it toughens the seafood.
Recipe Tips
- Read your bag’s instructions. Some oven bags need a dusting of flour inside so they don’t burst, and always cut a small slit for steam.
- Parboil the veggies. Potatoes and corn take longer than seafood, so give them a head start.
- Don’t overcook the shrimp. They are done the moment they turn opaque and curl.
- Reserve sauce for dipping. Always hold some back; it is the best part.
- Use a big enough pan under the bag to catch any drips.
Serving Ideas & Suggestions
This rich, buttery seafood boil is a feast on its own, but a few good sides make it a proper spread. Set out crusty bread to mop up all that garlic-butter sauce; nobody wants to leave a drop behind. For something heartier, serve it with my crispy baked potato wedges or air fryer potatoes.
A fresh side balances all that richness, so a simple lettuce, cucumber and tomato salad is perfect alongside. Since a seafood boil is made for sharing, it pairs beautifully with other crowd favorites like my crispy pan-seared whole red snapper or dirty rice.
To finish, keep dessert light and simple, something like my butter cake or carrot cake loaf. And to drink, a chilled glass of orange pomegranate juice or Jamaican carrot juice rounds out the meal.
Recipe FAQs
A rich blend of butter, garlic, onion, Cajun seasoning, Old Bay, paprika, cayenne, lemon juice, and hot sauce, loosened with a little broth.
Crab legs, shrimp, and lobster are classic, and you can add scallops, mussels, or clams. Use a mix you love.
About 40 minutes total. Boil the potatoes, corn, and eggs first, then bake everything in the bag for 10 minutes.
Shrimp turn opaque and curl into a C shape, and clams and mussels open up. Crab legs are usually precooked and just need warming.
You can make the sauce ahead and refrigerate it. For the best texture, boil and bake the seafood just before serving.
You control the heat with the cayenne and hot sauce. Start light and add more to taste.
More Recipes to Try
If you tried these seafood boil in a bag or any other recipe on my website, please leave a 🌟 star rating and let me know how it went in the 📝 comments below. Thanks for visiting!
Easy Seafood Boil In A Bag
Equipment
Ingredients
- 1.1 lb (500g) Crab legs
- 1 lb Shrimps devained, peeled and washed
- 6 Lobster tails cut half lenghtwise, devain and wash
- 1 lb Baby potatoes
- 2 teaspoon Salt
- 2 Andouille sauasages sliced
- 4 Eggs
- 4 whole Corn on the cob cut into halves
- 1 tablespoon Old bay Seasoning
- 1 tablespoon Cajun Seasoning
For The Sauce
- 2 sticks Butter unsalted
- 1 medium Onion finely chopped
- 6-7 Garlic cloves minced or finely chopped
- 1 tablespoon Cajun seasoning
- 1 tablespoon Old bay seasoning
- 1 tbsb Paprika
- 2 tablespoon Lemon juice or juice half lemon
- 1 teaspoon Black pepper
- ¼ cup Chopped parsley save some to sprinkle at the end
- ½ tablespoon Cayenne pepper
- 1 tablespoon Hot sauce or more
- 2 cups Broth water, or water from the boiled ingredients above.
Instructions
- Bring a pot of water to a boil. Add cajun, old bay seasoning, salt, corn, baby potatoes, and eggs. Boil for 15 minutes until the potatoes are fork-tender. Remove, peel the eggs, and set aside.
- Add the lobster tails in the last 5 minutes of the boiling time.
- While that is boiling, make the sauce. In a pan, add little oil and brown the sausage for about 5 minutes. Remove and set aside.
- Preheat the oven to 350℉
- There will be little oil left in the pan from the sausage, saute the onion and garlic for about 3 minutes. Add the butter and melt.
- Add the remaining seasonings and stir till combined. Adjust the hot sauce and cayenne pepper according to your level of heat.
- Add the broth and allow to simmer for about 2 minutes. You can adjust the consistency with more butter or oil if need be.
Assemble In Oven Bag
- Open the bag or prep the bag according to the instructions. Some bags require rubbing with flour to avoid bursting. Always read the instructions.
- Put all the cooked ingredients, shrimp, lobster in the bag and pour the sauce all over it. Save some sauce as a dip.
- Tie the bag and make a tiny slit on it so it doesn't burst and to let steam out.
- Tie the bag, place it on a roasting pan or baking sheet and put in the oven for 10 minutes
- Remove and let it cool enough to untie. Untie and pour into a tray, sprinkle some parsley on it.
- Serve with the remaining sauce, and enjoy.
Video
Notes
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- Open the bag or prep the bag according to the instructions. Some bags require rubbing with flour to avoid bursting. Always read the instructions.
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- Remember that veggies take slightly longer to cook than most seafood, so you may need to parboil them, then add them to the boil with the seafood to ensure they're tender.
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- To tell if your seafood is done cooking, check its color and shape. Shrimp, for instance, turns opaque, curls into a C or O shape, and becomes firm when it's cooked perfectly, so that should be your cue.
- You can make the garlic butter sauce ahead and refrigerate it. Reheat leftovers in a pan with a little butter, not the microwave, so the seafood stays tender
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Darlene Williams says
This is my go to when my husband wants a seafood boil!
Maliaka says
Can't get off this tasty bag. Thank you claudy
Bilikis says
Super delicious
Bilikis says
Thanks for the recipe ma
enozia says
An absolute riot of flavor! Loved it!
Thanks so much