Shrimp Boil Foil Packets
These Shrimp Boil Foil Packets are packed with juicy shrimp, smoky sausage, sweet corn, and tender potatoes, all seasoned with bold Cajun spices and cooked to perfection on the grill or in the oven.
The Easiest Seafood Boil You Will Ever Make
If you have ever wanted all the big, bold flavors of a classic backyard seafood boil without hauling out a giant pot and boiling a gallon of water, these Shrimp Boil Foil Packets are exactly what you need. We are talking juicy shrimp, smoky andouille sausage, sweet corn on the cob, and buttery potatoes, all tossed in a generous Cajun spice blend and sealed up in a little packet that practically cooks itself.
Whether you throw them on the grill at your next cookout or slide them into the oven on a busy weeknight, these seafood foil packets deliver a full restaurant-worthy meal with almost no cleanup. No giant pot. No draining. No mess.
Why This Recipe Works So Well
The magic of a foil packet seafood dinner comes down to steam. When you seal all those ingredients together in heavy-duty foil and hit them with high heat, the butter melts into the Cajun seasoning and mingles with the natural juices from the shrimp and sausage. The result is a deeply seasoned, incredibly moist little bundle that tastes like it took hours.
A few things make this version especially reliable:
- Par-cooking the potatoes first. This is the move that separates a great seafood boil packet from a frustrating one. Potatoes take much longer to cook than shrimp, so giving them a 4 to 5 minute head start in the microwave ensures everything finishes at the same time.
- Using andouille sausage. Smoked andouille brings that deep, savory backbone that makes a classic seafood boil so satisfying. Every bite of shrimp gets a little of that flavor.
- Layering the seasoning. Cajun seasoning is the base, but adding smoked paprika, garlic, and a touch of Old Bay on top creates real complexity.
Using the right foil and a solid seasoning blend makes a real difference in how these packets cook and taste. Heavy-duty foil holds up to grill heat without tearing, and a quality Cajun seasoning with good depth saves you from under-seasoned results.
Grill vs. Oven: Which Is Better?
Both methods produce fantastic seafood boil packets, and the choice really comes down to what is convenient for you.
On the grill: The packets sit right on the grates over medium-high heat for about 12 to 15 minutes. You get a slightly smoky, charred edge on the outside of the foil and a wonderfully intense heat that cooks everything fast. This is the classic summer move.
In the oven: The shrimp foil packets oven method is just as reliable. Set your oven to 425 degrees F, place the packets on a rimmed baking sheet, and bake for 20 to 25 minutes. Perfect for fall and winter when grilling outside is not exactly appealing.
Chef's Tip: Whichever method you choose, always open the foil packets away from you. The steam that escapes when you first crack them open is seriously hot and will burn you if you are not careful. Use tongs to fold back the foil, and let it breathe for 30 seconds before leaning in.
Make It Your Own
One of the best things about seafood packets is how flexible they are. Once you have the basic formula down, the variations are endless.
- Add crab legs or lobster tails for an ultra-luxe seafood and corn foil packet experience.
- Swap the sausage for clams or mussels for a more traditional New England feel.
- Add sliced bell peppers or zucchini for extra vegetables and color.
- Dial up the heat with a teaspoon of cayenne or a few dashes of your favorite hot sauce tucked into each packet.
- Make it lemony and herby by adding a handful of fresh dill or thyme along with the lemon slices.
For a lighter weeknight option, you can also use turkey sausage and reduce the butter to 2 tablespoons total without losing too much richness.
Tips for the Best Seafood Boil Foil Packets
Before you start assembling, here are the details that make the biggest difference:
- Use heavy-duty foil. Standard foil can tear on the grill grates or buckle in the oven. Double-layer standard foil if that is all you have.
- Do not skip the par-cook on potatoes. It sounds like an extra step, but it takes less than 5 minutes and completely eliminates the biggest complaint about foil packet recipes.
- Season generously. Everything gets steamed together, so the seasoning needs to be bold going in. Taste your spice mix before tossing.
- Seal the packets tightly but leave a little room. You want steam to build up inside, not escape. But do not wrap the filling so tight that there is no air pocket at all.
Ready to pull it all together? Here is the full recipe:
Shrimp Boil Foil Packets
These Shrimp Boil Foil Packets are packed with juicy shrimp, smoky sausage, sweet corn, and tender potatoes, all seasoned with bold Cajun spices and cooked to perfection on the grill or in the oven.
Ingredients
- 1 1/2 lb large shrimp, peeled and deveined, tails on or off
- 12 oz andouille sausage, sliced into 0.5-inch rounds
- 1 lb baby red potatoes, halved
- 3 ears of corn, husked and cut into thirds
- 4 tbsp unsalted butter, cut into small cubes
- 2 tbsp olive oil, extra virgin
- 2 tbsp Cajun seasoning, store-bought or homemade
- 4 cloves garlic, minced
- 1 tsp smoked paprika
- 1/2 tsp onion powder
- 1 tsp Old Bay seasoning, optional but highly recommended
- 1 lemon, sliced into thin rounds
- 2 tbsp fresh parsley, chopped, for garnish
- 1 tsp hot sauce, optional, for extra heat
Instruction
Preheat your grill to medium-high heat (about 400 degrees F / 200 degrees C), or preheat your oven to 425 degrees F (220 degrees C).
Place the halved potatoes in a microwave-safe bowl with a splash of water. Microwave on high for 4 to 5 minutes until just fork-tender but not fully cooked. Drain and set aside. This step prevents undercooked potatoes in the finished packets.
In a large bowl, whisk together the olive oil, minced garlic, Cajun seasoning, smoked paprika, onion powder, and Old Bay seasoning (if using).
Add the par-cooked potatoes, sliced sausage, corn pieces, and shrimp to the bowl. Toss everything gently until evenly coated in the seasoning mixture.
Tear off four large sheets of heavy-duty aluminum foil, each about 18 inches long. Lightly spray or brush the center of each sheet with a little oil to prevent sticking.
Divide the shrimp and vegetable mixture evenly among the four foil sheets, piling it in the center of each piece.
Top each portion with 1 tablespoon of cubed butter, a slice or two of lemon, and a drizzle of hot sauce if desired.
Fold the long sides of the foil up and over the filling, then fold in the short ends tightly to create a sealed packet. Leave a little room inside for steam to circulate.
For the grill: Place the packets directly on the grill grates, close the lid, and cook for 12 to 15 minutes, until the shrimp are pink and opaque and the sausage is heated through.
For the oven: Place the sealed packets on a large rimmed baking sheet. Bake for 20 to 25 minutes until the shrimp are cooked through.
Carefully open each packet away from you to avoid the burst of hot steam. Garnish with fresh chopped parsley and serve immediately, directly in the foil or transferred to plates.
Equipment
- Heavy-duty aluminum foil
- Large mixing bowl
- Whisk
- Microwave-safe bowl
- Large rimmed baking sheet (for oven method)
- Grill or oven
- Tongs
- Sharp knife and cutting board
Notes
Serving and Storing Your Seafood Foil Packets
Serve these packets straight from the foil for the most fun, casual presentation. Set them on a plate, cut open the top with scissors, and fold the foil back to create a little edible bowl. A side of crusty bread for soaking up those buttery juices is non-negotiable in our house.
For a full spread, serve alongside coleslaw, a simple green salad, or extra corn on the cob.
Storage: Leftovers keep in an airtight container in the fridge for up to 2 days. Reheat gently in a low oven or covered skillet with a splash of broth. Avoid the microwave on high power as it tends to make the shrimp tough and rubbery.
Whether you are feeding a crowd at a summer cookout or pulling together a quick foil packet seafood dinner on a Tuesday night, this recipe has you covered every single time.
