Hanoi ranks top among greatest cities for food: Telegraph

“If it's good enough for Barack Obama... The US president was spotted enjoying US$6 noodles with Anthony Bourdain in the Vietnamese capital on May 23. Clearly he's well aware of the city's culinary prowess,” according to the paper.  The Telegraph also advises eating like a local and taking to the streets for freshly prepared dishes such as pho tiu noodles with a sweet and sour soup, pork and fish sauce; banh mi, a baguette filled with pate, cucumber, herbs, crispy onion and chilli; and com tam, broken rice with grilled pork, pork skin, egg and fish sauce. 

Finish with traditional egg coffee - or ca phe trung - a blend of coffee and egg whites, folded with sugar, drunk hot or cold. 

Other cities included in the list are Tokyo (Japan), London (the UK), Jaipur (India), New York (the US), Mendoza (Argentina), Bologna (Italy), Lyon (France), New Orleans (the US), Bangkok (Thailand), Barcelona (Spain), Singapore, Copenhagen (Denmark), Lima (Peru), Fez (Morocco) and Chengdu (China).