[header] How to cook lobster tails [title] Put a steamer basket in a large pot with a tight-fitting lid. [step] The pot should be big enough to accommodate your lobster tails. If you don't have a steamer basket, you could use a small metal colander to keep the tails from being submerged in the water. 
[title] Add 2 inches (5.1 cm) of cold water to the pot and bring it to a boil. [step] The amount of water will vary based on how large the pot is, but aim to fill it a couple inches.