This French Onion Soup is hearty, comforting and full of flavor. It's prepared with beef broth and caramelized onions and topped with crispy bread and ooey gooey Swiss cheese. What's not to love?
What kind of onions are best for French Onion Soup? Yellow onions are the most commonly used onions for French Onion Soup, as they have a slightly sweet and mild flavor that becomes rich and caramelized when cooked for a long time.
Can I use a different type of cheese instead of Swiss? Totally! You can use other types of cheese, such as Gruyere or Parmesan or really mild cheese that you love.
Can I make French Onion Soup in advance? Yep! You can make French Onion Soup in advance and store it in the refrigerator for up to three days without the cheese or bread. When reheating, you may need to add more broth or water to adjust the consistency, then just broil the bread and cheese when you're ready to serve.