Caramelized Balsamic Red Onion Soup with Cheese Croutons Recipe

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Recipe Category: Soup

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Caramelized Balsamic Red Onion Soup With Cheese Croutons Recipe

Ingredients

Makes 6 Servings

  • ¼ cup olive oil
  • 1 tablespoon butter (optional)
  • 6 large red onions (4 to 5 pounds), thinly sliced
  • 2 teaspoons salt
  • ¼ cup balsamic vinegar
  • 2 tablespoons soy sauce
  • 2 tablespoons prepared mustard
  • 6 cups water
  • 1/8 teaspoon freshly ground black pepper

Cheese-Topped Croutons

Method

  1. Place a soup pot or a dutch oven over medium heat
  2. After about a minute, add the olive oil and swirl to coat the pan
  3. Toss in the butter, if desired, and swirl until it melts into the oil
  4. Stir in the onions and salt, and reduce the heat to medium-low
  5. Cook, stirring occasionally (and more often as the onions darken), for about 30 minutes, or until the onions become deep golden brown and very soft
  6. Add the vinegar, soy sauce, and mustard, and cook, stirring occasionally, for 5 minutes longer
  7. Pour in the water and bring to a boil
  8. Then turn the heat all the way down to the lowest possible setting, partially cover, and simmer gently for 15 minutes
  9. Season with black pepper, then ladle the soup into bowls
  10. Top each steaming bowlful with a crouton, and serve right away

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