Flavorful Onion Soup

Cook: 30 min Serves: 4 Cuisine: American

A warm, comforting onion soup with rich flavors from caramelized onions and savory beef bouillon, perfect for a quick, satisfying starter or light meal.

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Ingredients

  • 1 Tbsp. reduced-calorie margarine
  • 1 medium onion, thinly sliced
  • 5 1/2 cups water
  • 1 Tbsp. plus 2 tsp. beef flavored bouillon granules
  • 1/2 tsp. Worcestershire sauce

Instructions

  1. Melt margarine in a large saucepan over low heat; add onion.
  2. Cover and cook over low heat for 20 minutes or until onion is lightly browned, stirring occasionally.
  3. Add water, bouillon granules, and Worcestershire sauce, stirring well.
  4. Cover and bring to a boil.
  5. Reduce heat and simmer for 10 minutes.
  6. Serve hot.

Tips & Substitutions

For a deeper flavor, consider caramelizing the onions for a bit longer before adding the other ingredients. If you want a vegetarian version, substitute the beef bouillon with vegetable bouillon granules. Additionally, using homemade broth instead of water can enhance the taste significantly. Don't hesitate to add herbs like thyme or bay leaf for extra aroma.

Serving Suggestions

Serve the onion soup hot, garnished with fresh herbs for added color and flavor. It pairs beautifully with a slice of crusty bread or a grilled cheese sandwich for a comforting meal. For a heartier option, consider serving it alongside a salad or pairing it with recipes like Lo-Cal Veggie Soup for a balanced dinner.

Storage & Reheating

Store any leftover onion soup in an airtight container in the refrigerator for up to 3 days. When reheating, warm it gently on the stovetop over low heat, stirring occasionally to prevent sticking. You can also reheat it in the microwave, but be sure to cover it to retain moisture.

Nutrition & Diet Analysis (per serving)

Each serving of Flavorful Onion Soup contains roughly 96 calories, with 1g protein, 9g carbohydrates, and 7g fat.

96 kcal 5% DV
Protein Fat Carbs

Macronutrients

Protein 1g 2% DV
Total Fat 6.6g 8% DV
Carbs 8.6g 3% DV
Fiber 0.6g 2% DV
Sugar 1.3g 3% DV

Electrolytes

Sodium 131.8mg 6% DV
Potassium 36.4mg 1% DV

Vitamins & Minerals

Vitamin A 0mcg
Vitamin C 0.5mg 1% DV
Calcium 41.5mg 3% DV
Iron 0.4mg 2% DV
Diet fit Keto-friendly Under 400 cal

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 use frozen onions for this recipe?

Yes, frozen onions can be a convenient substitute. Just be sure to thaw them before use, as this will help in achieving the desired texture and flavor. They might not caramelize as well as fresh onions, but they'll still add good flavor to the soup.

Is it possible to make this soup dairy-free?

Absolutely! You can easily make this onion soup dairy-free by using a plant-based margarine or oil in place of the reduced-calorie margarine. This will keep the recipe in line with dairy-free dietary needs while maintaining its delicious flavor.

How can I make the soup thicker?

To thicken the soup, you can mix a tablespoon of cornstarch with cold water to create a slurry and stir it into the hot soup. Allow it to simmer for a few more minutes until it reaches your desired consistency. Alternatively, you can blend a portion of the soup for a creamier texture.

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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