Place the above in a 5-quart container. Cover and refrigerate; stir once every day for 5 days.
Drain fish and rinse fish well. Put white vinegar, sugar, and wine in a container and stir. Add fish, onions, and spices. Refrigerate for 7 days; stir once a day. Ready after 7 days; keep in refrigerator.
Recipe courtesy of Gena Schachtschneider, Janesville, WI.