Rinse the crawfish thoroughly in cold water
Sort and discard any dead or damaged crawfish
Purge the crawfish in clean water if desired
Fill a large pot with water
Add seasoning, salt, and optional aromatics to the water
Bring the water to a boil
Add potatoes, corn, onions, or other vegetables if using
Boil until the vegetables begin to soften
Add the crawfish to the boiling water
Return the water to a boil
Cook until the crawfish turn bright red and float
Turn off the heat
Let the crawfish soak in the seasoned water
Drain the crawfish
Serve hot