This is the famous SPANISH Tapas dish that has been messed up by so called chefs around the world. I know there are other recipes for this dish, but, I live in Spain and this is how they are made here. Fresh RAW prawns should be used, pre cooked prawns turn tough if used and spoil the dish. I eat this every week at the local tapas bar. For the best result the dish should be cooked and served in a earthenware dish. Serve with some crusty bread to soak up the liquid.