Typically served with croutons or a big piece of bread coated with cheese, French onion soup dates back to medieval France. When did it become popular in the United States?
Answer 1960s
Although French onion soup has as long tradition, it enjoyed a renaissance of popularity in the 1960s in the U.S. as a result of a renewed interest in French cuisine. A staple of fancy French restaurants, this soup may be served as a main dish or as a first course.
Asked by Vasilii Kulev · Last updated 4 years ago · 80 views · SOURCE
