Grind the onion and cranberries together. Add all the other ingredients and mix well. Put in a plastic container and freeze. One hour before serving, move to the refrigerator to soften.

* Frozen cranberry relish with horseradish - Susan Stamberg, former co-host of National Public Radio's "All Things Considered, " used to broadcast this recipe every year around Thanksgiving. She claimed it was her mother's, but it turned out that her mother got it from a Craig Claiborne column many years before. Very few people are neutral about this unusual, rather strong relish, they either love it or hate it. I'm in the former group.

* This relish is shocking pink in color, so plan your table setting accordingly.