Ingredients
Main Ingredients
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- 4 large yellow onions, thinly sliced
- 1 teaspoon sugar
- 2 cloves garlic, minced
- 1 cup dry white wine
- 6 cups beef broth, low sodium
- 1 teaspoon dried thyme
- 1 bay leaf
- 1 teaspoon black pepper, freshly ground
- to taste salt
Gruyere Croutons
- 1 baguette French bread, sliced into 1/2 inch slices
- 1 cup Gruyere cheese, grated
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Method
- 01In a large pot, melt the butter with the olive oil over medium heat.
- 02Add the sliced onions and sugar, and stir to coat. Cook, stirring occasionally, for about 20-25 minutes until the onions are caramelized and golden brown.
- 03Add the minced garlic and cook for another 1-2 minutes until fragrant.
- 04Pour in the white wine and scrape up any browned bits from the bottom of the pot. Let it simmer for about 2 minutes.
- 05Add the beef broth, dried thyme, bay leaf, and black pepper. Bring the soup to a boil, then reduce the heat and let it simmer uncovered for 30 minutes.
- 06While the soup is simmering, preheat the oven to 400°F (200°C).
- 07Place the baguette slices on a baking sheet and toast them in the oven for about 5 minutes on each side until golden.
- 08Remove the croutons from the oven, sprinkle grated Gruyere cheese on top of each slice, and return them to the oven for another 5 minutes until the cheese is bubbly and golden.
- 09Remove the bay leaf from the soup and season with salt to taste.
- 10Ladle the soup into bowls and top each with a couple of Gruyere croutons. Serve hot.