Bring the flavors of a restaurant-style Cajun seafood boil straight to your kitchen with this Seafood Boil in a Bag recipe. Packed with crab legs, shrimp, lobster tails, potatoes, corn, and andouille sausage, everything is smothered in a rich garlic butter sauce that’s roasted to perfection in the oven. This method keeps cleanup simple while locking in all the flavor — it’s the ultimate crowd-pleasing meal for family gatherings, holidays, or a fun weekend feast.
Scrub 2 lbs small potatoes until the water runs clear.
Boil until about two-thirds of the way cooked (still slightly firm). Drain.
Lightly oil 4 halved corn cobs with olive or avocado oil, season, and roast at 400°F for 5–6 minutes. This prevents mushy corn in the boil.
Step 2 – Prep the Lobster & Sausage
Using sharp kitchen scissors, cut the backs and undersides of 4 lobster tails, then split them in half. Clean thoroughly.
Slice 2–3 lbs andouille sausage into bite-sized pieces. Sear in a cold skillet over medium heat until browned and flavorful (about 5 minutes). Remove sausage and set aside.
Step 3 – Build the Garlic Butter Sauce
In the same skillet, melt 2 sticks of butter.
Add 1–2 chopped onions, sautéing until softened.
Mash and stir in 1–2 heads roasted garlic and 2 tablespoon fresh garlic until fragrant.
Pour in the juice of 1 orange and 1 lemon, then add 2 tablespoon hot sauce, 1 tablespoon Worcestershire sauce, and 1 tablespoon chicken bouillon powder.
Season generously with AP seasoning and Lemon Bae seasoning (about 3–4 tablespoon combined).
Add 1 cup chicken broth, simmer for 5–7 minutes until slightly reduced. Stir in ¼ cup fresh parsley. Taste and adjust seasoning.
Step 4 – Assemble the Seafood Boil Bag
Place a turkey roasting bag inside a foil pan or large casserole dish for support.
Add a layer of sauce to the bottom.
Layer in potatoes, corn, and sausage.
Add 3 lbs crab legs and 4 halved lobster tails.
Pour remaining sauce evenly over the ingredients. Tie the bag loosely, leaving room for steam.
Step 5 – Bake & Add Shrimp
Bake at 400°F for 30–35 minutes.
Open the bag carefully, add 2 lbs shrimp, reseal, and cook for another 8–10 minutes until shrimp turn pink and opaque.
Step 6 – Serve & Garnish
Open the bag, transfer to a large platter, and drizzle with extra sauce.
Garnish with fresh parsley and lemon wedges.
Serve hot with crusty bread to soak up the buttery garlic sauce.
Notes
Pro Tips for the Best Seafood Boil
Pre-cook wisely: Parboiling potatoes and roasting corn prevents mushy textures.
Balance flavors: Citrus juice cuts through the richness of the butter.
Don’t overcook shrimp: Add them last to keep them juicy and tender.
Bag support: Always place your turkey bag inside a roasting pan for safety.
What to Serve with a Seafood Boil
Seafood boils are a full meal on their own, but I love pairing them with:
Garlic bread or French baguette (perfect for soaking up sauce)