Most commonly found in the Southeastern United States, Creole mustard is a pungent condiment with a grainy appearance and a tangy flavor. The flavor comes from the spicy brown mustard seeds that are just slightly crushed, so they are neither ground nor whole.
They are placed in a combination of distilled white vinegar and salt, then coarsely ground and marinated for a long time before being packed. Creole mustard pairs especially well with po-boy sandwiches and is commonly used in New Orleans' rémoulade sauce.