The chorizo is cooked in front of you using methylated spirits which gives it the lovely blue flame.  You can choose how you like to have your sausage done.  At some of the steak houses the concept has been a platter made from cast iron which releases the heat slowly and allows you to start off with a rare steak and enjoy the sizzle of the cooking while you eat.

The fondue which was popular some years ago is also making a come back and it would interesting to see if any of the restaurants start offering cheese or chocolate fondues.