How much is french onion soup?

The price of French onion soup can vary depending on several factors such as the restaurant, location, and portion size. On average, a bowl of French onion soup can cost anywhere between $5 to $15, with higher-end restaurants charging more. Some restaurants may offer French onion soup as part of a prix-fixe menu or as a side dish, which could affect its price. It is always best to check the menu or inquire about the price before ordering to avoid any surprises.