Every so often, we do a "beaufort stew," which looks like the same thing.
In a turkey fryer, you add some Zatarains crab boil, along with a bottle of the same. Add a few onions chopped up. At about 30 minutes before "zero time," add some decent (Andouille,or Polish) sausage. At 20 minutes, add the potatoes. At 15 minutes, add the corn. At 10 minutes, add the crawdads. At 3 or 4 minutes, add the shrimp.
At Zero Time, remove everything with a strainer, and dump on the table and dig in. Table has BBQ sauce, melted butter, cocktail sauce, and PLENTY of napkins. Table is set up in the yard, so spills aren't a real issue.