Add Yahoo as a preferred source to see more of our stories on Google. Saffron threads in a spoon - Robin Stewart/Getty Images Often called red gold, saffron is the most expensive spice in the world: A ...

There is a spice sitting quietly in your kitchen cabinet that, by weight, has rivaled gold throughout much of human history.

If you don't have laboratory scales in your kitchen, the best way to get accurate results is to count of the number of threads required. Credit: Photo: Mike Harrington * These guidelines have been ...