INGREDIENTS
12
small to medium sized yellow onions
3
medium sized red onions
6 tbsp
olive oil
1/2 tsp
kosher salt
1/2 tsp
dried thyme
1 1/2 cups
beef broth
1 1/2 cups
chicken broth
kosher salt and black pepper
6
slices French bread (1 to 1 1/2-inches thick each)
olive oil for drizzling
6
thin slices Swiss cheese (or 1/4 pound grated Swiss cheese, or more to taste)