Question: how to cook frozen lobster tails in the shell?
Answer: Cooking Frozen Lobster Tails In a large kettle, bring enough water to a boil to cover lobster tails; add 1 tbsp. salt, if desired, for each quart of water. Place thawed tails in boiling water. When water returns to a boil, reduce heat and simmer (do not boil), covered, 5 min.