Dehydrated minced red onion is a convenient culinary ingredient made from red onions that have been dried and finely chopped. It retains the flavor and aroma of fresh red onions but offers the advantage of a longer shelf life and easy rehydration. It's commonly used in soups, sauces, seasonings, and marinades to impart a sweet and mildly pungent onion flavor without the need for chopping fresh onions.