Cajun Butter Corn Foil Packets for the Grill or Oven

Hot butter bubbling around plump corn kernels makes a simple summer side feel instantly more satisfying. Add Cajun seasoning, garlic, and a squeeze of lemon, and sweet corn gets a savory, lightly spicy finish without much extra work.

These Cajun Butter Corn Foil Packets for the Grill or Oven give you tender, juicy corn coated in seasoned garlic butter. They’re practical for backyard cookouts, busy weeknights, and meals where you don’t want another pot to wash.

The real advantage is the sealed foil packet. It traps steam around the corn while keeping the seasoned butter close to every kernel.

Why You’ll Love This Recipe

• Prep takes about 15 minutes, including cutting the corn and mixing the butter.
• Six individual packets make serving easy for cookouts and family dinners.
• The foil traps moisture so the kernels stay plump instead of drying out.
• You can use a 400–425°F grill or a 425°F oven.
• Cleanup stays simple because most of the seasoned butter remains inside the packets.

Ingredients

For the Cajun Butter Corn

• 6 medium ears fresh sweet corn, shucked and cut crosswise into thirds (about 2 lb / 900 g total, approximate)
• 6 tbsp unsalted butter, melted (3 oz / 85 g)
• 2 1/2 tsp Cajun seasoning
• 1/2 tsp garlic powder
• 1/4 tsp kosher salt
• 1/4 tsp freshly ground black pepper
• 1 tbsp fresh lemon juice (15 ml)
• 2 tbsp chopped fresh parsley

Fresh sweet corn gives these packets their best juicy texture. Choose ears with firm, full kernels rather than dry or wrinkled ones.

Cajun seasoning blends vary in saltiness. Taste a small pinch before adding the kosher salt, and reduce the added salt if your blend is already quite salty.

Unsalted butter gives you better control over the seasoning. Add the lemon juice after cooking so its fresh, bright flavor stays noticeable.

How to Make This Recipe

Step 1: Prepare the Grill, Oven, and Corn

Heat a gas or charcoal grill to medium-high, about 400–425°F, or preheat the oven to 425°F. Cut each shucked ear of corn crosswise into three pieces. Tear six sheets of heavy-duty aluminum foil, each roughly 12 by 16 inches. If baking, set out a rimmed sheet pan for the packets.

Pro Tip: Lay the corn flat on a sturdy cutting board and use a sharp chef’s knife. Press straight down through the cob rather than sawing back and forth.

Step 2: Coat the Corn With Cajun Butter

Combine the melted butter, Cajun seasoning, garlic powder, kosher salt, and black pepper in a large bowl. Add the corn pieces and turn them until every side is lightly coated. Let any extra seasoned butter collect at the bottom of the bowl so you can spoon it over the corn before sealing.

Pro Tip: If your Cajun seasoning tastes noticeably salty on its own, use only a pinch of additional kosher salt.

Step 3: Seal the Foil Packets

Place three corn pieces in the center of each foil sheet and spoon the remaining Cajun butter over them. Bring the long sides together and fold them over twice, then fold the short ends inward. Leave a little space around the corn so steam can circulate inside each packet.

Avoid leaving loose seams. Butter can escape onto the grill or baking sheet, which may leave the corn drier and can cause flare-ups over direct heat.

Step 4: Grill or Bake Until Tender

Place the packets on a 400–425°F grill and cook for 15–18 minutes, turning once halfway through, or bake them on a rimmed sheet pan at 425°F for 22–25 minutes. Carefully open one packet away from your face. The corn is ready when the kernels look plump and glossy and a fork pierces them easily without the kernels feeling mushy.

Step 5: Finish With Lemon and Parsley

Carefully open the hot packets, keeping your hands and face away from the escaping steam. Drizzle the corn with 1 tablespoon fresh lemon juice and sprinkle with chopped parsley. Turn each piece through the melted Cajun butter collected in the bottom of the foil, then serve while hot.

Expert Tips for Better Results

• Use heavy-duty aluminum foil when possible. If you only have standard foil, double each sheet to reduce tearing.
• Make the packets similar in size so the portions cook at roughly the same rate.
• Keep the grill around medium-high rather than placing the packets over intense flames, which can scorch the bottoms before the centers become tender.
• For extra char, remove the cooked corn from the foil and place it directly on the grill grate for 1–2 minutes, turning once.
• Use a rimmed baking sheet for the oven method. It catches any butter that leaks and makes handling the hot packets easier.
• Don’t judge doneness by color alone. Fresh corn may stay fairly pale even after it becomes fully tender.

Variations

• Smoky Cajun corn: Add 1/2 teaspoon smoked paprika to the seasoned butter for a deeper smoky flavor.
• Cajun lime corn: Replace the 1 tablespoon lemon juice with 1 tablespoon fresh lime juice and use 2 tablespoons chopped cilantro instead of parsley.
• Milder corn: Reduce the Cajun seasoning to 1 1/2 teaspoons and add 1/2 teaspoon sweet paprika.
• Parmesan finish: Sprinkle the cooked corn with 1/4 cup finely grated Parmesan immediately after opening the packets.
• Dairy-free version: Replace the 6 tablespoons butter with 6 tablespoons (85 g) firm plant-based butter suitable for cooking.

Serving Suggestions

• Serve the Cajun corn with grilled chicken thighs or pork chops for a simple cookout-style dinner.
• Pair it with grilled shrimp and a crisp green salad for a lighter summer meal.
• Add coleslaw and baked beans when you’re building a classic BBQ side-dish spread.
• Set out lemon wedges so each person can add a brighter, sharper finish at the table.
• Serve cold lemonade or unsweetened iced tea alongside the lightly spicy buttered corn.

Storage and Reheating

Cooked buttered corn shouldn’t sit at room temperature for more than 2 hours. Once the leftovers have cooled, remove the corn from the used foil and transfer it to an airtight container. Refrigerate for up to 3–4 days.

For longer storage, place cooled corn pieces in a freezer-safe container or tightly sealed freezer bag. Freeze for up to 2 months for the best texture. Thaw frozen corn overnight in the refrigerator before reheating.

To reheat in the oven, place the corn in fresh foil with 1–2 teaspoons of water or butter, seal the packet, and warm at 350°F for about 10–15 minutes.

For a faster option, microwave an individual portion covered for about 60–90 seconds, or until heated through. Microwave reheating works well for moisture, though any lightly charred grilled edges will become softer.