Step by action directions on how to boil Louisiana cajun crawfish and lobster. Crawfish Dish (40 lbs):. Purge crawfish in running water for 20-30 minutes. Include 4.5 pounds of Swamp Fire and 4.5 lbs of Louisiana seasoning to a 60 qt pot and give a boil. Put crawfish, potatoes, and sausage in and bring back to a boil. Shut off the burner, add frozen corn, mushrooms, and soak for 17 minutes. Lobster Dish (2 Lobsters):. Put lobsters…