Step 1

Place the crawfish in a large cooler, cover with cold water and add 1 cup of the salt. Allow the crawfish to purge in the salted water for 5 to 10 minutes. (This Southern tradition is said to remove mud and impurities before cooking.) Strain the crawfish and set aside.

Step 2

Fill a 42-quart stockpot fitted with a boil basket halfway with water. Add the crab and crawfish boil seasoning and remaining cup kosher salt. Then add the sausage, corn, onions, lemon juice and rinds, garlic, butter, thyme and bay leaves. Bring to a boil. Add the potatoes and boil until just cooked through, 8 to 10 minutes.

Step 3

Carefully add the crawfish to the stockpot and cook until they’re bright red, about 8 minutes. Immediately remove from the heat and add the ice to the stockpot to halt the cooking. Allow the crawfish and other ingredients to sit in the iced water for 25 to 30 minutes (the longer the crawfish sit, the more flavorful they become).

Step 4

Pull the crawfish, sausage and vegetables from the water using the boil basket. Serve over newspaper spread out on a table and sprinkle with seafood boil seasoning.