Saffron is the world’s most expensive spice by weight. Saffron threads are the stigmas of a low-growing, purple-flowered crocus. Each flower produces only three threads, which must be picked and sorted by hand. It is also used for its slightly woody and sweeter floral aroma, colour and medicinal properties. Saffron’s golden colour can be imitated by cheaper spices such as safflower and turmeric, but its rich and delicate flavour is unable to be imitated. It is highly valuable and has been used to colour and flavour dishes in a variety of cuisines, including Indian dishes such as saffron rice and biryani, Spanish dishes such as paella, Italian risottos and French bouillabaisse, as well as a range of other recipes including breads, seafood dishes and soups.