This Food Diplomacy article in The Parliament online magazine is interesting. There are many online entries devoted to food diplomacy:
https://www.theparliamentmagazine.eu/news/article/food-diplomacy-gastrodiplomacy-europe
Some more information on culinary diplomacy in diplo online educational site:
https://www.diplomacy.edu/topics/culinary-diplomacy/
Saveurcmagazine still does the best food diplomacy. It is the fashion industry applied to food for me like Gourmet magazine as well:
Reposted by Ruth Paget, author Eating Soup with Chopsticks and Marrying France and developer of the Novgorod and Bento War Games