Saffron threads
Definition:Dried stigmas from the crocus flower. Saffron is the world’s most expensive spice because each flower produces only three stigmas, which must be hand-picked and delicately dried. It takes thousands of the tiny stigmas to make up a gram of saffron. Sometimes sold in powdered form, though it does not have the same intensity of flavour. Threads are available from specialty food stores and select delicatessens.