Barack Obama has paid his own, personal tribute to Anthony Bourdain, recalling their celebrated lunch in a Hanoi eatery, and praising the chef and boulevardier’s ability to “bring us together”.

In the spring of 2016, the then president ate a $6 lunch with Bourdain at Bun Cha Huong Lien, a traditional roadside joint where most local people had little idea who either man was. Bourdain was filming for Parts Unknown season 8 while Mr Obama was negotiating a deal with Vietnam that ended a ban on selling military equipment to the single-party nation.

“Low plastic stool, cheap but delicious noodles, cold Hanoi beer,” wrote the former president following the death of Bourdain, 61, in Kaysersberg, France.

“This is how I’ll remember Tony. He taught us about food — but more importantly, about its ability to bring us together. To make us a little less afraid of the unknown. We’ll miss him.”

Current President Donald Trump called Bourdain's death - which French prosecutors are treating as a suicide - as “very shocking.”

“I enjoyed his show, he was quite a character,” Mr Trump told reporters at the White House.

Bourdain worked his way up to become executive chef at a top New York restaurant, and would later talk extensively about his use of drugs and addiction to heroin earlier in his life.

Anthony Bourdain: Celebrity chef in pictures Show all 8 1 /8 Anthony Bourdain: Celebrity chef in pictures Anthony Bourdain: Celebrity chef in pictures The 2017 New Yorker Festival - Anthony Bourdain Talks With Patrick Radden Keefe Getty Anthony Bourdain: Celebrity chef in pictures Anthony Bourdain with Nigella Lawson and Ludo Lefebvre in Channel 4's 'The Taste' Channel 4 Television Anthony Bourdain: Celebrity chef in pictures Anthony Bourdain winning Outstanding Informational Series Or Special at the 2016 Creative Arts Emmy Awards Getty Anthony Bourdain: Celebrity chef in pictures Bourdain's no-holds-barred account of life in American kitchens is both a memoir and an insider's guide to the tricks of the trade. Anthony Bourdain: Celebrity chef in pictures Chefs Anthony Bourdain (L) and Mario Batali take a selfie Chefs Anthony Bourdain (L) and Mario Batali take a selfie Getty Anthony Bourdain: Celebrity chef in pictures Bourdain and Danny Bowien at 'The Mind Of A Chef' Premiere Launch Party Getty Anthony Bourdain: Celebrity chef in pictures Anthony Bourdain atThe 53rd annual Clio Awards Anthony Bourdain ( Honorary Clio Award) The 53rd annual Clio Awards Alamy Anthony Bourdain: Celebrity chef in pictures Anthony Bourdain and Joel Rose return for the follow up to their bestseller Get Jiro! Anthony Bourdain, and Joel Rose (Kill The Poor) return for the follow-up to their #1 New York Times bestseller Get Jiro! Alamy

But it was his writing that brought him global fame. In 1999 The New Yorker magazine published his article “Don't Eat Before Reading This,” about the secrets of kitchen life, which would eventually become the 2000 book, Kitchen Confidential: Adventures in the Culinary Underbelly.

He went on to host television programme, first on the Food Network and the Travel Channel, before joining CNN in 2013. Bourdain was filming in France for his series "Part's Unkown" when he was found dead in his hotel room.

“His love of great adventure, new friends, fine food and drink and the remarkable stories of the world made him a unique storyteller,” CNN said in a statement. “His talents never ceased to amaze us.”