Saffron provides an aroma and distinct flavor to dishes, as well as the vibrant yellow color it adds to the food you put it in. It’s one of the most expensive spices you can buy because of the way it is harvested. The saffron strands are the stigmas of crocus flowers. Each crocus flower only produces 3 threads of saffron and they can only be picked by hand. The price for just one pound of saffron starts from $1,500 (£900)!