Step 1

Fill a large pot with four quarts of water along with 1/2 cup of salt and bring to a boil over high heat on your stovetop.

Step 2

Add the potatoes and onion, along with seafood boil seasoning wrapped in cheesecloth or placed in a tea diffuser, if desired. Boil until potatoes are fork tender, approximately 20-30 minutes.

Step 3

When the potatoes are soft, add the fish and the remaining 1/2 cup of salt. Boil for 3-5 minutes, or until the fish is cooked through.

Step 4

When the fish is done, drain the water in a colander and return fish, onion, and potatoes to the pot. Discard the seasoning.

Step 5

Add butter to the pot and gently stir to evenly coat everything.

Step 6

Serve on plates with sliced lemon. (Alternatively, lemon juice can be squeezed into the pot when the butter is added)