The easiest way to cook a Crayfish (lobster) is to boil for 8 to 12 minutes in salted water. Add 1 teaspoon salt for every quart of water. Bring water to a rapid boil and plunge Crayfish, head first, into water. Return to a boil and cook for 8 to 12 minutes. Remove Crayfish and serve with melted butter, lemon wedges, crayfish crackers and lots and lots of napkins.