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Ina Garten French Onion Soup

Ina Garten French Onion Soup recipe

Ina Garten’s French Onion Soup is a traditional French bistro-style soup made by slowly caramelizing onions and deglazing them with white wine before simmering them in a rich beef broth. The soup is then topped with toasted baguette slices and a thick layer of melted Gruyère cheese for the ultimate comfort dish.

Ingredients

Scale

For the Soup:

  • 4 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 4 large yellow onions, thinly sliced
  • 1 teaspoon kosher salt
  • ½ teaspoon freshly ground black pepper
  • 1 teaspoon sugar (optional, to enhance caramelization)
  • ½ cup dry white wine (such as Sauvignon Blanc)
  • 8 cups beef broth (homemade or high-quality store-bought)
  • 2 teaspoons fresh thyme leaves (or 1 teaspoon dried thyme)
  • 1 bay leaf

For the Topping:

  • 1 French baguette, sliced into ½-inch rounds
  • 2 tablespoons olive oil
  • 2 cups shredded Gruyère cheese
  • ½ cup grated Parmesan cheese

Instructions

Step 1: Caramelize the Onions

  • Melt butter and oil – In a large Dutch oven or heavy-bottomed pot, melt butter and olive oil over medium-low heat.
  • Cook the onions – Add sliced onions, salt, and pepper. Stir occasionally and cook for 30-40 minutes until deep golden brown. Add sugar to help with caramelization if desired.
  • Deglaze the pan – Pour in the white wine, scraping up any browned bits from the bottom of the pot. Let it simmer for 2-3 minutes until mostly evaporated.

Step 2: Simmer the Broth

  • Add beef broth – Pour in the broth, then add thyme and bay leaf.
  • Simmer gently – Bring to a simmer and cook uncovered for 30 minutes to develop flavor. Remove the bay leaf before serving.

Step 3: Prepare the Baguette Croutons

  • Toast the bread – Preheat oven to 375°F (190°C). Arrange baguette slices on a baking sheet, brush with olive oil, and toast for 10 minutes until crisp.

Step 4: Assemble and Broil

  • Ladle soup into oven-safe bowls – Fill each bowl with hot soup.
  • Top with croutons – Place a toasted baguette slice on top of each bowl.
  • Add cheese – Sprinkle generously with Gruyère and Parmesan cheese.
  • Broil until bubbly – Place under the broiler for 2-3 minutes, or until the cheese is melted and golden brown.