What is the most expensive food in the world?

Eight of the world's most expensive foods

Saffron. If your rice is luminous yellow, then the chances are it's been sharing a saucepan with saffron. 

Caviar. Caviar is the pickled roe of the sturgeon fish, and considered one of the world's great delicacies. 

Oysters. 

White Truffle. 

Iberico ham. 

Wagyu beef. 

Kopi Luwak coffee.

Foie gras.