However, if you are cooking a fairly large crayfish it's advisable to split it down the back with a sharp heavy knife. This will help it to cook quicker and make it more manageable to serve once it's cooked.
I love cooking it on a barbecue, but it can be cooked just as well at home under a domestic grill, if split in half. Cooking times will vary, but a whole crayfish of around 1 to 1 3/4 pounds will take about 15 to 20 minutes above a hot barbecue, turning it around to cook through evenly. If the crayfish is halved, it will take between 10 to 15 minutes. A large crayfish, around 2 pounds, will take 25 to 35 minutes and if split, about 15 minutes.
Serve grilled crayfish very simply with a little olive oil and lemon juice, or melted butter. However, the following dressings add a little oomph to this delicious meat.