I've made this more times then I care to count and there's a reason for that... because it's awesome!
This was about 1.5 lbs shrimp. Mix together 6 oz Italian dressing, 1 stick melted butter, 1 TBSp minced garlic. 1 tsp Old Bay or Cajun sessoning. Toss shrimp with sauce, transfer to a disposable aluminum pan then smoke at 225 for 1 hour. That's it!