It originated in – surprise – France; and dates back all the way to the 18th century. https://www.ricardocuisine.com/en/recipes/7047-french-onion-soup-the-best Julia Child’s French Onion Soup Recipe . French onion soup is a thin soup made with caramelized onions, beef broth, and wine, and topped with bread and cheese. In my recipe, I use a combination of beef stock, chicken stock, red wine, and also add in some balsamic vinegar, plus three different types of cheese. Head chef Ben Dineen opts for Spanish onions… The French onion soup at l’Gueuleton restaurant on Fade Street in Dublin 2 has a loyal and enthusiastic following, and is a menu staple there. https://www.deliaonline.com/.../european/french/french-onion-soup https://damndelicious.net/2019/01/04/classic-french-onion-soup https://www.tasteofhome.com/recipes/classic-french-onion-soup Plus a sliced baguette and cheese to bring it all home. Classic French onion soup only requires a few simple ingredients, the base of which are onions, beef stock, wine, Worcestershire sauce, and seasonings.