Choose live lobsters from a reputable seafood market or grocery store. Look for lobsters that are lively and have a healthy appearance.
Fill a large pot with a few inches of water. Add aromatics such as bay leaves, lemon slices, and a sprinkle of salt to enhance flavor. Place a steaming rack or basket at the bottom of the pot to keep the lobsters above the water level.
Place the pot on the stove over high heat and bring the water to a rolling boil.
While the water is heating up, prepare the lobsters. Rinse them under cold water to remove any debris. If desired, you can briefly stun the lobsters in the freezer for about 15 minutes before cooking.
Once the water is boiling, carefully add the lobsters to the pot, one at a time. Cover the pot with a lid and reduce the heat to medium-high to maintain a steady steam.
Steam the lobsters for about 8-10 minutes for the first pound (450g) and then add an extra 3 minutes for each additional pound. For example, if your lobster weighs 2 pounds, steam it for approximately 11-13 minutes. Ensure that the lobsters turn bright red and the meat is opaque.
To check if the lobsters are cooked, carefully insert a knife or a meat thermometer into the thickest part of the lobster's tail. The internal temperature should reach 140°F (60°C), and the meat should be firm and white.
Once cooked, remove the lobsters from the pot using tongs or a slotted spoon. Allow them to cool for a few minutes before cracking them open. Serve the steamed lobster with melted butter, lemon wedges, and your favorite side dishes. Enjoy your delicious meal!