Easy French Onion Soup

Prep: 10 min Cook: 60 min Serves: 6 Cuisine: French

Warm and savory French Onion Soup features tender caramelized onions in a rich broth, topped with melted cheese and crispy croutons—perfect for comforting, elegant meals.

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Ingredients

  • 1 medium onion, sliced
  • 4 Tbsp. butter
  • 6 c. chicken broth
  • 3 Tbsp. Worcestershire sauce
  • seasoned croutons
  • Mozzarella or Provolone cheese, sliced

Instructions

  1. Saute onion in butter until tender.
  2. Add chicken broth and Worcestershire sauce.
  3. Simmer for 1 hour.
  4. Spoon the soup into bowls.
  5. Top each bowl with seasoned croutons and sliced cheese.
  6. Serve immediately.

Tips & Substitutions

To enhance the flavor, consider caramelizing the onions longer for a deeper taste. If you're short on time, you can use pre-sliced onions or frozen caramelized onions. For a twist, try adding a splash of white wine or sherry for added depth. If you prefer a different cheese, Gruyère or Swiss also works well in this soup.

Serving Suggestions

Serve the soup with a side of crusty bread or a fresh green salad for a complete meal. It pairs beautifully with Lainey'S Arroz Con Pollo(Rice With Chicken) for a heartier dinner. For an elegant touch, you can broil the soup topped with cheese until bubbly before serving, creating a deliciously cheesy crust.

Storage & Reheating

Store leftover soup in an airtight container in the refrigerator for up to 3 days. To reheat, warm it on the stovetop over medium heat until heated through. If reheating in the microwave, place the soup in a microwave-safe bowl and cover, heating in short intervals while stirring to ensure even warming.

Nutrition & Diet Analysis (per serving)

Each serving of Easy French Onion Soup contains roughly 761 calories, with 15g protein, 90g carbohydrates, and 39g fat. It is an excellent source of protein (30% of the Daily Value) and dietary fiber (21% of the Daily Value), and a good source of iron and calcium. Note that it is relatively high in sodium, at 1107mg per serving (48% of the Daily Value).

761 kcal 38% DV
Protein Fat Carbs

Macronutrients

Protein 15.1g 30% DV
Total Fat 39.1g 50% DV
Carbs 89.6g 33% DV
Fiber 5.8g 21% DV
Sugar 12.7g 25% DV

Electrolytes

Sodium 1107.5mg 48% DV
Potassium 347mg 7% DV
Cholesterol 13.3mg 4% DV

Vitamins & Minerals

Vitamin A 37.9mcg 4% DV
Vitamin C 4mg 4% DV
Vitamin D 0.1mcg
Calcium 199.4mg 15% DV
Iron 3.5mg 19% DV
Diet fit High-fiber
Contains Milk

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make this soup vegetarian?

Yes, you can easily make this French onion soup vegetarian by substituting the chicken broth with vegetable broth. You can also enhance the flavor with additional herbs and spices, like thyme or bay leaves, to maintain depth without meat.

How can I make this soup ahead of time?

You can prepare the soup a day in advance. Simply follow the recipe up to the simmering stage, then let it cool and store it in the refrigerator. When ready to serve, reheat and top with croutons and cheese just before serving.

Can I freeze French onion soup?

Yes, French onion soup can be frozen. Allow it to cool completely, then transfer it to freezer-safe containers. It can be stored for up to 3 months. To reheat, thaw overnight in the refrigerator and then warm on the stovetop or in the microwave.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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