French Onion Soup

User Reviews

5.0

30 reviews
Excellent
  • Prep Time

    10 mins

  • Cook Time

    10 mins

  • Total Time

    1 hr

  • Servings

    8 servings (1 cup each)

  • Calories

    264 kcal

  • Course

    Main Course, Soup

  • Cuisine

    French, American

French Onion Soup

This easy French Onion Soup gets it's flavor from deeply caramelized onions and a punch of brightness from balsamic vinegar.

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Ingredients

Servings
  • 2 tablespoons olive oil
  • 1 tablespoon butter
  • 3 pounds onions halved and thinly sliced (see note 1)
  • 1/2 teaspoon sugar optional (see note 2)
  • Salt and freshly ground black pepper
  • 1/4 cup balsamic vinegar
  • 6 cups chicken broth
  • 2 cups beef broth
  • 2 teaspoons fresh thyme minced, or 1/2 teaspoon dried thyme, plus more for garnish
  • 1 bay leaf
  • 1 baguette sliced and toasted (see note 3)
  • 8 slices gruyere cheese or Swiss cheese, or 2 cups shredded
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Instructions

  1. In a large Dutch oven over medium heat, melt olive oil and butter together. Add onions, sugar (if using), and 1/4 teaspoon salt. Cook until the onions are starting to darken and caramelize, about 30 minutes.
  2. Stir in vinegar and scrape up the brown bits from the bottom of the pot. Add chicken broth, beef broth, thyme, and bay leaf. Simmer until reduced slightly, about 20 minutes. Season to taste salt and pepper.
  3. Preheat oven broiler on HIGH. Place broiler-safe soup bowls on a rimmed baking sheet. Divide the soup evenly among the 8 bowls (about 1 cup each). Top each bowl with 1 or 2 baguette slices and cover with one slice of cheese (or 1/4 cup shredded).
  4. Broil until the cheese is hot and bubbly, about 3 to 5 minutes, then remove from oven and garnish with fresh thyme if desired.
Equipments used:

Notes

  • Onions: Standard yellow onions work great, but so do white onions, sweet onions, or even red onions. Speed up prep time by running the onions through a food processor rather than cutting onions by hand.
  • Sugar: A touch of sugar coaxes along the caramelization process, but it's up to you if you want to add it. 
  • Baguette: Toasting the baguette slices makes them even better at sopping up the maximum amount of broth while holding the melty cheese. If desired, substitute store-bought or homemade croutons.
  • Yield: My homemade French Onion Soup recipe makes eight cozy (1-cup) servings that work well as a starter, side dish, or light main dish.
  • Storage: Store leftovers covered in the refrigerator for up to 4 days.

Nutrition Information

Show Details
Serving 1 cup Calories 264kcal (13%) Carbohydrates 35g (12%) Protein 11g (22%) Fat 9g (14%) Saturated Fat 5g (25%) Cholesterol 23mg (8%) Sodium 1127mg (47%) Potassium 489mg (14%) Fiber 4g (16%) Sugar 9g (18%) Vitamin A 410IU (8%) Vitamin C 28mg (31%) Calcium 219mg (22%) Iron 2mg (11%)

Nutrition Facts

Serving: 8servings (1 cup each)

Amount Per Serving

Calories 264 kcal

% Daily Value*

Serving 1 cup
Calories 264kcal 13%
Carbohydrates 35g 12%
Protein 11g 22%
Fat 9g 14%
Saturated Fat 5g 25%
Cholesterol 23mg 8%
Sodium 1127mg 47%
Potassium 489mg 10%
Fiber 4g 16%
Sugar 9g 18%
Vitamin A 410IU 8%
Vitamin C 28mg 31%
Calcium 219mg 22%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.

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Overall Rating

5.0

30 reviews
Excellent

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