Exploring the World of Spices” Spices are dried seeds, roots, fruits, or other plant substances that are used to flavor and season food. They have been an integral part of human cuisine and culture for thousands of years and are prized for their ability to enhance the taste, aroma, and color of various dishes. Spices can be used in both savory and sweet dishes, and they vary widely in terms of flavor profiles, from mild and earthy to hot and pungent.