Ingredients
Soup
- 1 1/2 pounds yellow onions thinly sliced
- 3 tablespoons butter
- 1 teaspoon salt
- 1/4 teaspoon white sugar
- 3 tablespoons all purpose flour
- 8 cups boiling water
- 2 (10.5 gram) beef bouillon cubes
- 1/2 cup dry white wine
- salt and pepper
Topping
- 12 slices French bread cubed and hard toasted
- 2 cups swiss cheese coarsely grated
Method
- In a large saucepan, cover and cook the onions over medium-low heat in the butter for 15 minutes.
- Uncover, raise heat to medium.
- Stir in salt and sugar.
- Stir frequently and cook until the onions turn a deep golden brown (about 30 minutes).
- Add the boiling water, bouillon cubes, and wine.
- Cover partially and simmer for about 30 minutes.
- Season with salt and pepper.
- Ladle soup into oven safe bowls.
- Top with toasted bread and cheese.
- Broil in oven until cheese melts and begins to turn brown.
Source
Adapted from Mastering the Art of French Cooking https://www.amazon.ca/Mastering-Art-French-Cooking-1/dp/0394721780