11 of the most insanely expensive ingredients in the world

From gold-laced caviar that costs US$40,000 per teaspoon to swiftlet bird’s nest and Japanese Yubari King melons, these foods are as rare as they are outrageously priced
Would you spend more than your monthly shopping bill or pay the price of a luxury car just for one taste of a rare ingredient? Here are some of the most outrageously expensive foods in the world.
1. White Gold caviar
Costing US$40,000 a teaspoon (yes, you read that correctly), White Gold caviar is farmed for royalty and the super rich. The roe, which comes from a rare Albino sturgeon, is laced with 22-carat gold – said to be good for the immune system – making it the most expensive food in the world.
It was created by fish farmer Walter Gruell and his son Patrick, the first caviar producers in their native Austria. White Gold caviar is available in fine-dining restaurants around the world – from Dubai to Monaco – and costs around US$140,345 a pound.
2. White Alba truffle
Found at the base of oak trees in the forests of northern Italy, and harvested only in winter, white truffles are known for their nutty, musty flavour. Truffle hunters use specially trained pigs and dogs to forage for these delicacies, which are best used as a garnish in pasta, risotto and scrambled eggs.