Ingredients
Method
- Slice the onions thinly.
- Heat oil and butter in a large pot over medium heat.
- Add sliced onions, salt, and pepper; cook until caramelized.
- Stir in the thyme and cook for an additional minute.
- Deglaze with white wine; cook until reduced.
- Add the beef broth; bring to a boil, then simmer.
- Season with additional salt and pepper to taste.
- Toast the bread slices until golden brown.
- Ladle the soup into oven-safe bowls; top with bread and cheese.
- Broil until the cheese is bubbly and golden.
