1. Sauté onions in melted butter in a large soup pot or saucepan. 2. for 15 to 20 minutes or until onions begin to brown and turn. 3. transparent. 4. . Add beef broth, salt and garlic powder to onions. Bring mixture. 5. to a boil, then reduce heat and simmer uncovered for 1 hour. Add. 6. the grated parmesan cheese in the last 10 minutes of cooking the. 7. soup. 8. . When soup is done, preheat oven to 350 degrees and toast the. 9. French bread slices for about 10 to 12 minutes or until they begin. 10. to brown. When bread is done, set oven to broil. 11. Build each serving of soup by spooning about 1 cup of soup into. 12. an oven-safe bowl. Float a toasted slice or two of bread on top of. 13. the soup, then add a slice of Swiss cheese on top of that. Place a. 14. slice of mozzarella on next and sprinkle 1 tablespoon of shredded. 15. parmesan cheese over the top of the other cheeses. 16. Place the soup bowl on a baking sheet and broil for 5 to 6 minutes. 17. or until the cheese begins to brown. ---------------------------------------------------------------------------
