Easy French Onion Soup is a warm, hearty soup with French bread and melty Provolone, Swiss and grated Parmesan cheese on top. It's cheesy, flavorful and absolutely delicious.
Add beef broth, dry sherry and dried thyme. Season the soup with salt and ground black pepper, and stir well. Simmer the soup for 30 minutes over medium heat.
Ladle soup into oven-safe ramekins and top each with one slice of french bread, a slice of provolone cheese, a couple of diced swiss cheese and finish with more grated parmesan cheese on top.