Buttery Onion Soup
A rich, creamy onion soup with melted mozzarella, buttery flavor, and optional croutons, perfect for cozy gatherings or comforting meals.
Ingredients
Instructions
- In a large kettle, sauté onions in butter over low heat until tender and transparent, about 20 to 30 minutes.
- Blend in flour. Gradually add broth and milk; cook and stir over medium heat until bubbly.
- Cook and stir 1 minute more; reduce heat to low.
- Add cheese and stir constantly until melted.
- Do not boil.
- Season to taste.
- Serve with croutons if desired.
Tips & Substitutions
To enhance the flavor of your Buttery Onion Soup, consider using a mix of sweet and yellow onions. If you want a gluten-free option, replace the flour with cornstarch or a gluten-free flour blend. For a creamier texture, substitute half of the milk with heavy cream. Make sure to stir the soup constantly after adding the cheese to ensure it melts evenly without clumping.
Serving Suggestions
Serve the Buttery Onion Soup hot, garnished with croutons for added crunch. It pairs beautifully with a side salad or a slice of crusty bread for a complete meal. You can also serve it alongside heartier dishes like Sweet Pea'S Chicken Divan for a comforting family dinner.
Storage & Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, warm the soup gently on the stove over low heat, stirring occasionally. If the soup thickens too much, add a splash of milk or broth to reach your desired consistency. Avoid boiling it again to preserve the cheese's texture.
Nutrition & Diet Analysis (per serving)
Each serving of Buttery Onion Soup contains roughly 1885 calories, with 39g protein, 277g carbohydrates, and 67g fat. It is an excellent source of iron (100% of the Daily Value), protein (79% of the Daily Value), and calcium (55% of the Daily Value), and a good source of potassium and vitamin D. Note that it is relatively high in sodium, at 1923mg per serving (84% of the Daily Value).
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 other types of cheese in this recipe?
Yes, you can experiment with different cheeses like Gruyère or Swiss for a unique flavor. Just ensure the cheese you choose melts well to achieve that creamy, rich texture in your soup.
Is it possible to make this soup vegetarian?
Absolutely! Simply replace the chicken broth with vegetable broth and use plant-based butter to keep it vegetarian-friendly. This will still provide a delicious and satisfying soup without sacrificing flavor.
Can I prepare this soup in advance?
Yes, you can prepare the soup ahead of time. Cook it according to the recipe, let it cool, and store it in the refrigerator. When you're ready to serve, reheat it gently, adding a bit of milk or broth if needed to adjust the consistency.
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).