Some ingredients can cost thousands of dollars a pound. These food ingredients, in particular, are some of the most expensive in the world.

An assortment of exotic spices on wooden spoons. - Vera Larina/Shutterstock For about as long as humans have been eating food, we've been looking for ways to make that food taste a little better — and ...

Saffron, a luxurious spice mainly grown in Iran, is among several potential cash crops being investigated at NMSU.

For about as long as humans have been eating food, we've been looking for ways to make that food taste a little better — and when we find a certain substance that improves our food, we'll stop at ...