French onion soup

French onion soup (French: soupe à l’oignon) is a soup usually based on meat stock and onions, and often served gratinéed with croutons or a larger piece of bread covered with cheese floating on top. Ancient in origin, the dish underwent a resurgence of popularity in the 1960s in the United States due to a greater interest in French cuisine. French onion soup may be served as a meal in itself or as a first course.
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