Corn relish is a chunky, sweet-and-sour condiment made primarily from corn kernels combined with vinegar, sugar, and diced vegetables such as onion, bell pepper, and celery. It is common in American regional cooking as a topping for grilled meats, hot dogs, and burgers, and in Tex-Mex cooking as an addition to tacos and nachos. Its flavor balances the corn's natural sweetness against vinegar's acidity and a mild heat from chili peppers or mustard. Corn relish is typically preserved by canning or pickling, giving it a longer shelf life than fresh corn salsa.