01 -
Peel and devein shrimp if needed, leaving tails on. Pat completely dry with paper towels.
02 -
Arrange shrimp in a spiral pattern in a cast iron skillet. Start at the outer edge with tails pointing toward the center. Work inward in concentric circles until all shrimp are arranged in a single layer.
03 -
In a small saucepan over low heat, melt butter completely. Add minced garlic and cook for 1 to 2 minutes until fragrant but not browned. Add parsley, chili flakes, and black pepper. Stir and remove from heat. Add salt if desired.
04 -
Pour garlic butter evenly over arranged shrimp, making sure every piece is coated. Butter should come about halfway up the shrimp bodies.
05 -
Preheat smoker to 250°F with applewood or cherrywood.
06 -
Place cast iron pan directly on smoker grate. Close lid and smoke for 30 to 40 minutes until shrimp reach 140°F internal temperature. Check at 30 minutes and every 5 minutes after until they reach target temperature.
07 -
Remove pan from smoker using heat-resistant gloves. Rest for 1 to 2 minutes. Serve immediately in the pan or transfer to a platter with the garlic butter.