With a good smattering of caviar, gold leaf and truffle, these opulent dishes leave no expense spared. From the world’s most extravagant hamburgers to gold-dusted ice-cream sundaes, extremely rare cuts of meat and even a caviar omelette – you’ll be amazed at how much the world’s most expensive restaurant dishes cost. Intrigued? Read on to feast your eyes on some seriously decadent dining…