COOK IT.
Remove grids from the grill.
Preheat grill on medium-low heat and place the base of Broil King’s Rib Roaster onto the flavor waves.
Once the temperature has reached 300°F, add about 4 tablespoons of cooking oil to the roaster, enough to just coat the bottom. Sear sausages for about 3-4 minutes per side, until browned but not fully cooked through. They will finish cooking when you add them back later. Transfer sausages to a cutting board.
Add smashed garlic cloves and diced onions to the roaster. Saute until soft and translucent, about 4-5 minutes, mixing occasionally. When you aren’t mixing, keep the lid of the grill closed to maintain a steady medium-low heat.
Toss in potatoes, 1 ½ tablespoon of The Perfect Spice Rub, and 2 bay leaves. Saute for 1-2 minutes. Pour in stock or water, cover the rib roaster and cook for 15 minutes.
Meanwhile, cut sausages into bite-sized medallions.
Remove the lid from the rib roaster with Broil King’s heat-resistant gloves and check potatoes for doneness with a fork. They should be tender with little resistance.
Mix in corn segments and cooked sausage pieces. Cook for another 5 minutes.
Finally, add lobster pieces, shrimp, and mussels and cover with the rib roaster lid to steam. Cook for a final 5 minutes.
Simultaneously, melt butter in a small pot on the side burner or on the stove at medium-low heat. You could also melt butter in the microwave. Add minced garlic and the remaining 1 ½ tablespoons of The Perfect Spice Rub and mix to combine. Set aside.
Using a slotted spoon or wire skimmer, transfer the contents of the seafood boil onto a large baking sheet, leaving behind most of the liquid.
Pour spiced garlic butter over the tray of seafood or serve it on the side. Salt & pepper to taste. Garnish with chopped parsley or cilantro and lemon wedges.