Boiled Crawfish - cooking recipe

Ingredients

15 lb. live crawfish
2 yellow onions, quartered
6 lemons
1 box Zatarain's powdered (not bags) crab boil
10 lb. ice

Preparation

In a large tub or ice chest, cover crawfish with fresh water to purge them, about 15 minutes.
Drain water and repeat.
Fill a 40-quart pot 2/3 full of water and place on burner to boil.
Add crab boil, onions and lemons and simmer the mixture once the water comes to a boil.
Add crawfish and watch closely. When water first begins to come to a boil, time for 5 minutes and turn off the heat.
Put the ice on top to stop cooking process and wait for 20 minutes.