2 Large Sweet Onions, thinly sliced
1 Cup Dry Red Wine
1- 14.5oz Cans Beef Broth
2 Cups Seasoned Croutons
4 Slices Swiss Cheese, sliced thick
In a deep skillet, heat 2 tbsp extra virgin olive oil over medium heat. Add onions and cook, stirring occasionally, until translucent and softened, about 15 minutes. Add wine and bring to a boil. Pour in the beef broth, lower the heat to low and simmer for 10 minutes; season with pepper. Preheat the broiler. Divide the soup among 4 ovenproof bowls, then top each one with one-quarter of the coutons and a slice of cheese. Set the bowls on a rimmed baking sheet and broil until the cheese is bubbly and golden, about 1 minute.