Su filindeu, or "threads of God," is the rarest pasta in the world. For a century, it was made by a single family in the Sardinian city of Nuoro for religious celebrations. Today, there are fewer than 10 people there who know the secret to making the pasta as thin as a strand of hair.
It takes a full day working in temperatures up to 1,000 degrees Celsius to make one batch of Himalayan black salt, or kala namak. The salt was once used as a medicine to treat indigestion.