To parboil the lobsters you need to bring around 3 inches of water to boil in an 8 quart saucepan.

Once the water begins boiling add the lobsters, then cover the pan and cook for 10 minutes.

Once the 10 minutes has elapsed remove the lobsters from the pan and leave them to one side to cool.

Whilst the barbecue is heating up in another saucepan place the butter, lime juice, bay leaf, salt and pepper and cook for 10 minutes over a low heat.

Then put to one side to use later on.

By now the lobsters should have cooled down sufficiently to enable you to cut them in half lengthwise and brush them with the butter mixture you have just made.

After brushing the cut side of the lobster with the butter mixture you place them cut side down onto the grill of the barbecue which you have placed about 4 inches above the heat source and cook them for 5 minutes.

Now turn the lobsters over carefully brushing them with some more of the butter mixture and continuing cooking them on the barbecue until the meat is cooked through.

This should take about another 5 minutes.

As soon as the meat is cooked through remove the lobsters from the barbecue place on a clean plate and garnish them with lime wedges and bay leaves if you want.

Each of your guests should be given ½ lobster each.