Prepare Lobster Tails: If frozen, thaw lobster tails in the refrigerator overnight or under cold running water for 30 minutes. Using sharp kitchen shears, cut down the center of the hard top shell of each lobster tail, from the wide end down to the tail fin, being careful not to cut through the meat. Gently crack the shell open and carefully pull the raw lobster meat up through the opening, resting it on top of the shell. Make a shallow cut lengthwise down the center of the top of the lobster meat to help it cook evenly.
Preheat Broiler & Prepare Butter: Preheat your oven broiler to high (around 500-550°F or 260-290°C) and position an oven rack about 4-6 inches from the broiler element. In a small bowl, combine the melted butter, minced garlic, fresh lemon juice, chopped parsley, salt, and black pepper. Stir well to combine.
Brush and Broil: Place the prepared lobster tails, meat-side up, on a baking sheet. Evenly brush half of the seasoned butter mixture over the exposed lobster meat. Place the baking sheet under the preheated broiler. Broil for 6-10 minutes, depending on the size of your tails, or until the meat is opaque and lightly browned. The internal temperature should reach 140-145°F (60-63°C).
Serve Immediately: Once cooked, remove the lobster tails from the oven. Drizzle with the remaining seasoned butter and serve immediately with fresh lemon wedges. Enjoy your perfectly Broiled Lobster!