9. Ladle the soup into oven-safe bowls, place a slice of toasted French bread on top of each bowl, and sprinkle with shredded cheese.
10. Broil the bowls in the oven for about 2-3 minutes, or until the cheese is bubbly and golden.

Notes:

Feel free to add some sautéed mushrooms for an extra depth of flavor.
You can use chicken broth instead of beef broth for a lighter soup.
Preparation time: 20 minutes | Cooking time: 2 hours | Total time: 2 hours 20 minutes | Kcal: Approximately 450 per serving | Servings: 4 servings