Prepare a large pot of water to a rolling boil. There should be enough water to cover the lobster completely.
Place the lobster into the pot, making sure they are fully submerged, and cover with a lid.
A rule of thumb for boiling lobster is to boil for 5-6 minutes per one pound. Example: 1 ¼ pound will take about 7-8 minutes whereas 2lbs will take 11-12 minutes. The lobster should register 135°F internally on an instant-read thermometer.
Remove the lobster, and place it onto a cutting board to cool.
Remove the meat from the lobster and chop it into bite-size pieces.
Pre-heat half of the griddle to low and the other half to medium-high.
Butter the buns and toast on the side of the griddle that is heated to low.
On the side that is heated to medium-high, set the cast iron on the griddle and melt the remaining butter.
Once the butter is melted, add the garlic and cook for 7 minutes.
Toss in the lobster and combine until the lobster is heated through.
Taste, then season with salt and pepper accordingly.
Grab a toasted bun, and stuff it with lobster. Garnish with parsley or a squeeze of lemon.