Chow chow

Chow-chow is a pickled dish from the American South. Made primarily of chopped green tomatoes, onions, cabbage, and seasonal peppers (though carrots, cauliflower, beans, and peas are sometimes included), chow-chow is a pickled relish eaten by itself or as a condiment on fish cakes, mashed potatoes, biscuits and gravy, pinto beans, hot dogs, hamburgers and other foods. Southern food historian John Egerton cited a connection to relish recipes of Chinese rail workers in the 19th century. It is considered a summer condiment in the South. An early 20th-century American recipe for chow chow was made with cucumbers, onions, cauliflower and green peppers left overnight in brine, boiled in (cider) vinegar with whole mustard seed and celery seeds, then mashed into a paste with mustard, flour and turmeric.

Source: Wikipedia