Warpaint,
Don't want to step on any toes, but this is how we cook them:
-You do need to rinse the crawfish until your drain water is clear. Don't put salt on them or any other old tricks, as that only works with crabs.
-Bring water in a pot about 2/3'ds of the way full to rolling boil.
-Add about 1/2 bag of crab/crawfish boil *every extra pot of crawfish you boil will be more hot (spicy) because of the crawfish boil buildup, so it's always better to start off kind of mild and strengthen it
-put crawfish in,making sure that the water covers most of them. The water doesn't have to cover all of them, but most. The steam will cook the ones on top if the water doesn't get them.
-small sized crawfish boil 8 minutes, large sized boil 10 minutes.
-VERY IMPORTANT after boiling, turn heat off and let crawfish sit in water for 10 minutes. Most people miss on this part. The more you let them soak, the more spicy they are. Don't go too long, though, the tails will soften. If you don't soak enough, the tails will taste bland.
- if you want potatoes, put them in before the crawfish, and time them to boil 15-20 minutes (example - put potatoes in 10 minutes then add crawfish for 20 minutes total) You can also put onions in with potatoes. You don't need vidalia onions, what your about to do to them will make them beg to be sweet.
-corn cooks quicker and should be added with the crawfish. Beware, corn soaks up the spice quick, and will be the spiciest thing out of the pot.
-take out, eat and say Oooooh dat's good, and do it again until your beer runs out or you can't eat any more.
-call me over when you do it to help eat!