Clean, wash and tenderize the octopus. Cut it into small pieces.
Heat the oil in a pan and fry the onions in it until golden brown. Then add the pieces of octopus and all the other ingredients; and let it all simmer gently, covered, for two hours. Stir the mixture from time to time and add a little hot water if it seems to be drying out.
The stew may be used either as a dressing