There’s nothing like the smell of garlic butter mingling with grilled shrimp on a summer evening. This method keeps the shrimp tender and flavorful while making cleanup effortless.
Each foil pack seals in moisture, ensuring the shrimp cook evenly without drying out. The garlic butter infuses every bite with rich, aromatic flavor, and the grill adds a subtle smokiness.
With just 15 minutes on the heat, you’ll have a pescatarian dish that’s as impressive as it is simple. No special tools required—just heavy-duty foil and a hot grill.
Serve directly from the pack for a no-fuss meal that lets the flavors shine. Here’s how to make it.
Ingredients for Grilled Shrimp Foil Packs
Simple ingredients for bold, smoky, buttery shrimp in foil packs.
| Ingredient | Amount | Notes |
|---|---|---|
| Large Shrimp 🦐 | 1 ½ lb | Peeled and deveined, tails on |
| Unsalted Butter 🧈 | ½ cup | Melted for garlic butter |
| Garlic Cloves 🧄 | 6 cloves | Minced for maximum flavor |
| Lemon 🍋 | 1 whole | Sliced for serving |
| Fresh Parsley 🌿 | ¼ cup | Chopped, for garnish |
| Old Bay Seasoning 🌶️ | 2 tsp | Or Cajun seasoning blend |
| Salt 🧂 | 1 tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ½ tsp | Freshly ground preferred |
| Red Pepper Flakes 🔥 | ½ tsp | Adjust to taste for heat |
| Heavy-Duty Aluminum Foil 📜 | 4 sheets | About 12×12 inches each |
| Olive Oil 🫒 | 1 tbsp | For drizzling before grilling |
| Lemon Juice 🍋 | 2 tbsp | Freshly squeezed for brightness |
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The shrimp quality matters most here. Wild-caught Gulf shrimp from Whole Foods or Trader Joe’s are consistently fresh and sweet—look for 16-20 count per pound for even cooking. Avoid pre-cooked shrimp (they turn rubbery). The butter should be unsalted so you control the seasoning. If using frozen shrimp, thaw in cold water (never at room temp) and pat very dry.
No Old Bay? Cajun seasoning or a mix of paprika, garlic powder, and cayenne works. Fresh herbs like thyme or dill can replace parsley. The lemon can be lime for a different citrus note. Need it milder? Reduce the red pepper flakes by half. For extra richness, add a splash of white wine to the garlic butter before sealing the packs.
Assemble packs up to 4 hours ahead—keep chilled until grilling. Leftovers? Unlikely, but they’ll keep 2-3 days refrigerated. Reheat gently in a skillet to avoid overcooking. The foil can be recycled after use (rinse if needed).
Why You’ll Love This Recipe
- No Mess Cooking: I just toss shrimp, butter, garlic, and lemon in foil—no pans to scrub later.
- Buttery Garlic Explosion: The butter melts into the shrimp with the garlic and lemon, making every bite rich and zesty.
- Campsite or Kitchen: I’ve made these on the grill, over a fire, and even in the oven—same great result every time.
- Budget-Friendly Feast: A pound of shrimp stretches further than I expected, and it feels like a restaurant meal at home.
Step-by-Step Instructions for Grilled Shrimp Foil Packs
This method delivers perfectly cooked shrimp with bold flavors and minimal cleanup.
Step 1: Prepare the Garlic Butter Mixture
In a small bowl, melt the 0.5 cup unsalted butter if not already softened. Stir in the 6 cloves minced garlic cloves, 2 tablespoons lemon juice, 2 teaspoons Old Bay seasoning, 1 teaspoon salt, 0.5 teaspoon black pepper, and 0.5 teaspoon red pepper flakes.
Mix thoroughly until all ingredients are fully incorporated. The butter should be fragrant with visible specks of garlic and spices. This flavor base will infuse into the shrimp as it cooks, creating a rich, aromatic sauce within each foil pack.
Step 2: Assemble the Foil Packs
Lay out the 4 sheets heavy-duty aluminum foil on a flat surface. Divide the 1.5 lb large shrimp evenly among them, placing about 6-8 shrimp in the center of each sheet. Drizzle each portion with 1 tablespoon olive oil divided equally among the packs.
Spoon the garlic butter mixture evenly over the shrimp on each sheet. Make sure every piece is well-coated for maximum flavor. Leave the lemon slices aside for now—you’ll add them just before sealing to preserve their freshness.
Step 3: Seal and Grill the Packs
Fold the sides of each foil sheet up and over the shrimp to create a sealed packet. Crimp the edges tightly to prevent any juices from escaping during cooking. Place the 1 whole lemon slices on top of the shrimp inside each pack just before completely sealing.
Preheat your grill to medium-high heat. Place the foil packs on the grill and cook for 12-15 minutes. The packs are done when the shrimp turn opaque and pink throughout. Avoid opening the packs prematurely to retain steam and heat.
Step 4: Finish and Serve
Carefully remove the foil packs from the grill using tongs or a spatula. Open each pack cautiously to avoid steam burns. The shrimp should be perfectly cooked with a glossy, aromatic garlic butter sauce.
Garnish with the 0.25 cup chopped fresh parsley and serve immediately. The parsley adds a fresh, vibrant contrast to the rich, buttery sauce. Each pack serves one person, making this a simple and impressive presentation for individual portions.
Pro Tips For Making Grilled Shrimp Foil Packs
- Preheat the Grill: Get those coals screaming hot before the packs go on—I learned this the hard way after too many batches of rubbery shrimp from a lukewarm start.
- Pat Shrimp Dry: Blot the shrimp with a paper towel first, even if they look dry. Sounds weird, but it keeps them from steaming in their own juices.
- Skip the Overcrowding: Give each shrimp its own space in the foil pack. I used to cram them in, and they’d turn out unevenly cooked every time.
- Slice Lemon Thin: Cut the lemon into paper-thin rounds instead of wedges—it distributes the citrus flavor better and looks a hell of a lot nicer when you open the pack.
Troubleshooting Great grilled shrimp foil packs
Shrimp Overcooking
If your shrimp turn rubbery, they’ve likely cooked too long. Pull them off the grill immediately when they turn opaque pink—this takes about 12-15 minutes total. I check one shrimp at 10 minutes to gauge progress. 🔥
Leaking Foil Packs
Prevent messy leaks by using heavy-duty foil and double-layering if needed. Crimp the edges tightly, leaving no gaps. I fold the top edge last to trap all the garlic butter inside.
Uneven Cooking
Ensure even cooking by dividing the 1.5 lb shrimp equally among packs. Overcrowding leads to steaming rather than grilling. Spread shrimp in a single layer for best results.
Weak Flavors
If your shrimp lack boldness, boost the garlic butter with extra Old Bay seasoning or lemon juice. I often add a splash of white wine to the butter mixture for depth.
Foil Tearing
Use 12×12 inch sheets for ample space. Place packs seam-side up on the grill to avoid direct contact with hot grates. I find Reynolds Wrap holds up best.
Steam Burns
Open packs carefully away from your face. Let steam escape for 30 seconds before diving in. I use long tongs to peel back just one corner first.
Nutrition Facts
Frequently Asked Questions
What’s the best way to seal the foil packs?
Fold the long sides up first, then crimp the top edge tightly. Use heavy-duty foil and press firmly to prevent leaks. Double-layer if needed for extra security.
Can I use frozen shrimp?
Yes, but thaw completely in cold water first and pat very dry. Frozen shrimp release moisture, which can dilute the garlic butter flavor.
How do I know when the shrimp are done?
They’re ready when opaque and pink, typically after 12-15 minutes. Check one at 10 minutes to avoid overcooking.
Can I make these ahead of time?
Assemble packs up to 4 hours ahead and refrigerate. Grill just before serving for the best texture and flavor.
Trained in classic French technique but raised on slow-cooked ribs and spicy rubs, she blends culinary skill with smoke and soul.
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