Scale and cut pike into small pieces, soak in 5/8 cup salt water to each quart of fish. Cover with white vinegar and soak five days; then soak in cold water 1/2 hour. Pack in jars with alternate layers of sliced onions, combine 1 cup sugar to 2 cups white vinegar. Add pickling spices, pour mixture over fish and onions packed in jars. Can be eaten and enjoyed in one week.