Where to eat the best Soupe à l’oignon in Paris?

For Soupe à l’oignon in Paris, Café Caillou leads with 1 review and an average score of 7.6/10. Across Paris, critics have reviewed Soupe à l’oignon once, scoring it 7.6/10. The latest review was posted on 25 April 2026.

Even though it originated as a humble peasant dish, French onion soup is nowadays regarded as one of the most prized dishes of French cuisine. The broth is simple, made merely with caramelized onions and meat stock. However, the soup is distinguished by croûtes–pieces of crispy baked bread that are placed on top of the soup and are then generously covered with cheese. The assembled dish is finished in the oven, allowing the cheese to melt while the top turns into a golden crust. French onion soup is a dish with a rich history and a very long tradition. The onions have been used since the Roman times, and a similar soup has been known since the Middle Ages. This French classic has been changed through history, establishing its final form in the 17th century. It was primarily known as a simple and hearty traditional dish, but in the 1960s, when French cuisine started to grow in popularity around the world, onion soup became one of its most famous representatives. Today, it can be found in almost every traditional French restaurant, where it is usually served as a starter.