Black truffles at La Toque restaurant in Napa, Calif. The owner, Ken Frank, who buys truffles from Australia, backs efforts to grow them in Napa. Credit Jason Henry for The New York Times

Because they are such a mystery, and intersect various of our interests in these pages, we feel compelled to share this:

Has a Start-Up Found the Secret to Farming the Elusive Truffle?

The American Truffle Company has a new technique that it says can expand the range of the Perigord truffle in North America, but success is proving costly. Continue reading →