Preheat the grill or smoker to 225 F. Set it for indirect cooking.
Remove the crab legs from the packaging. Defrost under running water if frozen. Pat them dry with paper towels and place them into a large foil pan.
Melt the 2 cups of butter in the microwave over low heat and allow the fat solids to rise to the top. Use a spoon to skim off the fat and discard. You can also clarify it over the stove if you prefer.
Combine the butter, garlic, Cajun Dry Rub, Tabasco, worcestershire sauce, and lemon juice together in a liwuid measuring cup.
Baste the crab legs to start in about a 1/2 cup of the butter mixture. Coat them evenly while the smoker is preheating.
When the grill has come up to temperature, place the crab legs onto the smoker grates and let them smoke for 10-15 minutes. Brush the butter mixture over the crab legs generously.
Continue smoking until the crab meat reaches an internal temperature of 145 degrees F. Place in a pan and baste with the remaining butter mixture.
Serve with extra grilled lemon wedges, melted butter, and cocktail sauce if you prefer and enjoy!
Notes
Grill the lemons halves to take some of the acidic bite out of it before adding to your finished seafood!