Fill a large pot with water and bring the water to a rolling boil.

Add salt or other seasonings if desired.

Once the water has reached a boil, carefully add the lobsters, head first, one at a time, using tongs or gloves.

Cover most of the top once you have the lobsters in the pot and quickly bring the water back to a boil.

Once your water is boiling again, cover the pot and set your timer.

Boil for seven to 10 minutes for one- to 2-pound lobsters, or up to 20 minutes for larger ones. A general rule of thumb for boiling lobsters is seven minutes for the first pound and three minutes for each additional pound.

The meat is usually fully cooked once the shell has turned bright red. If unsure, you can use a meat thermometer to check that it's reached 135°F (57°C).