Thanks for the tips, yes I might just try mulching some in the food processor. I did look in all those places in our Sainsburys but no luck, they had onion relish, tomato relish even sweetcorn relish but no green dill pickle relish, maybe they were just sold out. Of course I could have asked one of the umpteen teenage shelf packers that were lounging about but somehow I knew what the answer would be ("if it's not there we don't have it")