Instructions
Step 1
In a small bowl, stir together the butter, parsley, chile flakes, garlic, and lemon zest. Season to taste with salt and black pepper, then set aside.
Step 2
Using a cleaver, split the lobster in half lengthwise through its head and tail. Scoop out and discard the yellow-green tomalley and break off the claws. Transfer the lobster halves, shell side down, to a large baking sheet. Crack the claws and transfer them to the baking sheet. Drizzle the halves and claws with oil, then season to taste with salt and black pepper.
Step 3
Heat a charcoal or gas grill to high, then bank the coals or turn off the burner on one side. Place the lobster halves, flesh side down, and claws on the hottest part of grill and cook until slightly charred, 2–3 minutes. Flip the lobster halves and claws over and use a spoon to spread them with the garlic-parsley butter. Continue grilling until the lobster meat is tender, 3–5 minutes more.