Chowchow is a spicy mixture of chopped and pickled vegetables usually including green tomatoes, onions, and sweet and hot peppers. Look for it on the pickle aisle, or use homemade.
Stir together chowchow and mayonnaise in a small bowl. Serve immediately, or cover and chill up to 2 days.
Note: For testing purposes only, we used Braswell's Mild Chow Chow.