The pine nut is a beloved ingredient in Mediterranean cuisine - think pesto hummus or stuffed eggplant. In Lebanon, its export is so valuable it's called white gold, but an invasive species of bug ...

LEILA FADEL, HOST: Pesto, hummus or eggplant stuffed with lamb - the pine nut is a beloved ingredient in Mediterranean cuisine. I love pine nuts, and it's been a source of big money in Lebanon.

You may be wondering how to grow a pine tree from a pine cone. Well, you're in luck because growing pine trees from seed is an easy way to produce lots of trees economically.

As a cook, I am a self-confessed walnut “nut.” Although, as with the Brazil nut, the walnut is botanically the seed of a drupe. The stone fruit can be opened after ripening to reveal walnut seeds.

José Natalino Ribeiro, an araucaria pine nut harvester, sorts araucaria pine cones and wood for domestic use on his family’s farm, in the town of Urubici, Santa Catarina. Image by Fellipe Abreu ...