Step 1
Preheat an oven to 200 degrees F (95 degrees C).
Step 2
Combine the water with 2 tablespoons salt in a large pot; bring to a boil
Step 3
Plunge lobster into boiling water cover the pot and return the water to a boil. Reduce heat to medium-low and cook at a simmer until the lobster becomes bright right about 10 minutes.
Step 4
Remove the lobster from the water and set aside to cool.
Step 5
When cool enough to handle clean lobster and pull out tail meat reserving the tail shell. Crack claws and remove the meat.
Step 6
Chop the tail meat coarsely and reserve with the intact claw meat in a covered dish; keep warm in the preheated oven.
Step 7
Put about 1 inch of water in the bottom of a saucepan with 1 teaspoon salt; bring to boil.
Step 8
Add potatoes to the boiling water; top with intact lobster tail shell.
Step 9
Cover the saucepan and return the water to a boil. Reduce heat to medium low and cook at a simmer until the potatoes are easily pierced with a fork 20 to 30 minutes.
Step 9
Remove lobster shell and discard.