Fire up your smoker and get it dialed in to a steady 225 degrees F. Load your firebox or chip tray with apple wood or cherry wood - these fruit woods burn clean and deliver a light, sweet smoke that is perfect for delicate shellfish. Do not use heavy woods like hickory or mesquite for shrimp, as they will absolutely overpower the natural sweetness. Let your smoker come up to temp and run clean smoke - you want thin, blue-white smoke rolling, not thick billowing white smoke. Give it 15 to 20 minutes to stabilize before you put a single shrimp on the grates.

While the smoker comes up to temp, prepare your shrimp. If using shell-on shrimp, use kitchen shears to cut along the back of the shell and remove the dark vein, leaving the shell intact for protection and moisture retention. If using peeled and deveined shrimp, pat them completely dry with paper towels - this is not optional. Moisture on the surface of the shrimp will steam rather than smoke them, and you will lose that beautiful caramelized exterior we are after. Dry shrimp equal better smoke adhesion every single time.

In a large mixing bowl, combine your smoked paprika, garlic powder, onion powder, kosher salt, black pepper, cayenne pepper, dried oregano, and brown sugar. Mix the dry rub together until fully combined. Drizzle your olive oil or melted butter over the dried shrimp and toss to coat evenly. Then add your dry rub and toss again until every shrimp is thoroughly and generously coated. Do not be shy with the seasoning - shrimp are small and need a bold coat to stand up to the smoke and heat.

Arrange your seasoned shrimp in a single layer in a grill basket or thread them onto metal or pre-soaked wooden skewers. Do not crowd them - give each shrimp a little breathing room so the smoke can circulate around all sides. If you are using skewers, thread each shrimp through both the tail end and the thicker body section so they lay flat and do not spin when you flip them. Place the basket or skewers directly on the smoker grates at 225 degrees F.

Smoke the shrimp at 225 degrees F for 15 to 20 minutes. You are looking for a few visual cues to know when they are getting close: the shrimp will begin to turn from grey and translucent to a beautiful opaque pink, and they will start to curl. The sweet spot is a loose C shape - that tells you the shrimp are cooked through but still tender and juicy. If they curl into a tight O shape, you have pushed them too far and they will be rubbery. Keep your instant read thermometer close and start checking internal temps at the 12-minute mark.

Pull the shrimp when they register an internal temp of 120 to 130 degrees F at the thickest point. This is your target zone for perfectly cooked, juicy smoked shrimp. USDA guidelines recommend 145 degrees F for shrimp, so if you prefer to cook to the full USDA standard, pull them right at 145 degrees F and move fast - carryover heat will push them slightly past that on the rest. Either way, use that instant read thermometer and do not guess. Seafood does not forgive overcooking the way a thick brisket does.

While the shrimp are in their final minutes on the smoker, melt your finishing butter in a small saucepan or heat-safe bowl and stir in the minced fresh garlic. Let the garlic bloom in the warm butter for about a minute off direct heat - you want it fragrant but not browned. The moment you pull your shrimp off the smoker, immediately brush them generously with the garlic butter. This finishing baste adds richness, reinforces the garlic flavor, and gives the shrimp a gorgeous glossy sheen that makes them look as incredible as they taste.

Unlike a big brisket or pork shoulder where you need to rest the meat for 30 to 60 minutes to redistribute juices, shrimp are best served immediately off the smoker while the garlic butter is still warm and fragrant. Plate them on a large wooden board or cast iron skillet, squeeze a couple of lemon wedges over the top, hit them with a generous handful of freshly chopped parsley, and get them to the table fast. Smoked shrimp are a sprint, not a marathon, and they are at their absolute best within the first 5 minutes off the fire.