Vegetarian Onion Soup Recipe – Gourmet And Food

Servings: 4 Total Time: 1 hr 15 mins Difficulty: Intermediate

I remember the first time I savored a bowl of onion soup in a quaint bistro tucked away in a little French village. The sun was setting, painting the sky in brilliant hues. The warmth from the soup wrapped around me, comforting and satisfying. 

Since then, I’ve often craved that magical blend of sweet, caramelized onions and savory broth. This vegetarian onion soup recipe captures that very essence, weaving in layers of flavor that soothe the soul. Even better, it’s simple. 

So, whether you’re hosting a cozy gathering or just frantically seeking a comforting meal after a long day, this soup is your answer.

vegetarian onion soup recipe

What is Vegetarian Onion Soup?

Vegetarian onion soup brings the classic French onion soup into a meat-free zone. It highlights the caramelized sweetness of onions bathed in a rich vegetable broth. 

Many opt for beef broth in classic recipes, but don’t fret! This version harnesses the depth of flavor from quality vegetable broth, wine, and seasonings, ensuring that you don’t miss out on any punchiness.

What Does It Taste Like?

Think of the first bite as a warm embrace. The sweetness of the onions contrasts beautifully with garlic and a hint of red wine, creating a hearty yet calming flavor profile. Adding herbs like thyme further elevates the experience. 

The texture of the crusty bread soaked in the soup offers an extra layer of delight. It’s comforting, savory, and utterly satisfying.

Why This Recipe Works

This vegetarian onion soup stands out for several reasons. Let’s dig in.

1. Rich Depth of Flavor: The combination of caramelized onions, fresh herbs, and high-quality vegetable broth creates a symphony of taste that satisfies. The slow cooking process allows the flavors to blend beautifully, ensuring every spoonful is packed with deliciousness.

2. Simple Ingredients: You don’t need a pantry full of exotic items to whip up this dish. Just a few staple ingredients can yield incredible results. Anyone can prepare this recipe without feeling overwhelmed.

3. Versatile and Customizable: This soup can easily adapt to your preferences. Want a spicier version? Toss in some red pepper flakes. Prefer more cheese? Go wild with your favorite varieties. This adaptability makes it ideal for any dining experience.

4. Healthful and Satisfying: Packed with fiber from the onions and devoid of meat, this soup is lighter on the waistline, yet hearty enough to fill you. It’s an excellent choice any day of the week, from casual lunches to elegant dinners.

Ingredients for Vegetarian Onion Soup

  • 4 tablespoons extra virgin olive oil
  • 3 pounds of yellow onions (approximately 5 large ones), peeled and cut into half-moon slices
  • 4 cloves garlic, finely minced
  • 1 ½ teaspoons sea salt
  • ½ teaspoon smoked paprika
  • 8 cups vegetable broth
  • ½ cup robust red wine
  • 2 bay leaves
  • 1 tablespoon fresh thyme
  • ½ teaspoon freshly cracked black pepper
  • 2 tablespoons plant-based butter
  • 1 teaspoon sugar
  • 1 tablespoon balsamic vinegar (optional)
  • 1 cup Gruyère cheese, freshly grated (optional; can substitute with vegan cheese)
  • 4 thick slices of crusty French bread
vegetarian onion soup copycat recipe

Step-by-Step Instructions

Step 1: Gather Your Ingredients

Start by assembling all the ingredients. This not only makes your life easier but also keeps you organized. Once you have everything within arm’s reach, you’re setting yourself up for a smooth cooking session.

Step 2: Caramelize the Onions

In a large pot, heat the olive oil over medium heat. Add your sliced onions and sea salt. What will follow is a beautiful transformation. Stir occasionally, allowing the onions to soften and turn golden brown, about 30 to 40 minutes. Be patient; this step is golden!

Step 3: Add Garlic and Spices

Once your onions are perfectly caramelized, add the minced garlic and smoked paprika. This will add rich flavor. Stir and cook for an additional 2-3 minutes.

Step 4: Deglaze the Pot

Pour the red wine into the pot and scrape up any delicious bits stuck to the bottom. Let it simmer for 5 minutes until the wine reduces slightly.

Step 5: Add Broth and Herbs

Pour in the vegetable broth, add bay leaves, thyme, black pepper, and sugar. Bring the mixture to a boil, then reduce heat and let it simmer for about 20 minutes.

Step 6: Final Touches

Stir in the balsamic vinegar for an extra depth of flavor. If you’re feeling cheesy, add the grated Gruyère cheese now or reserve it for serving.

Step 7: Prepare the Bread

While the soup simmers, toast thick slices of bread until golden. If desired, top with cheese and broil until bubbling and melty.

Step 8: Serve & Enjoy!

Ladle the soup into bowls, top with the cheesy bread, and dig in!

Notes: Helpful Tips

  • Take Your Time: Caramelization is key. The longer you cook the onions, the deeper the flavor.
  • Wine Selection: Use wine you would drink, as it directly impacts the soup’s flavor.
  • Make Ahead: This soup allows for advance prep. The flavors deepen over time.
  • Storage: Keep leftovers in an airtight container in the fridge for up to three days.
  • Freezing: You can freeze this soup for up to a month. Thaw and reheat on the stove when you’re ready to enjoy!

How to Store the Leftovers?

Once your soup has cooled, simply transfer it into airtight containers. Store it in the refrigerator for up to three days. You can also freeze individual portions for quick meals. Remember, if freezing, leave some room in the container to allow for expansion.

Sides for Vegetarian Onion Soup

1. Bruschetta: Lightly toasted bread crafted with tomatoes, garlic, and basil adds a vibrant touch. The freshness cuts through the richness of the soup.

2. Cheese and Crackers: A simple cheese and cracker plate can elevate your soup experience. Choose a selection of hardy cheeses that won’t melt away in the soup.

3. Grilled Cheese Sandwich: A classic pairing, grilled cheese brings nostalgia. Use a mix of cheeses for that gooey texture. Dip it into the soup for a delightful combo.

4. Roasted Vegetables: A side of seasonal roasted veggies adds texture and vigor. Season with olive oil and herbs for a pop of color and flavor.

Ingredient Alternatives

1. Wine Swap: If you don’t want to use wine, you can substitute it with an equal amount of vegetable broth with a splash of vinegar.

2. Onion Varieties: If yellow onions aren’t available, feel free to use sweet onions or even red onions for a different flavor.

3. Cheese Replacement: For those avoiding dairy, opt for your preferred vegan cheese to maintain that cheesy goodness.

4. Broth Variations: If vegetable broth isn’t handy, homemade broth or even water seasoned with herbs and spices could work in a pinch.

Best vegetarian onion soup recipe

Conclusion

Vegetarian onion soup is more than just a meal; it’s an experience that warms the heart and soul. As you pour the broth over that perfectly toasted cheese-laden bread, take a moment to savor the rich, aromatic scents that fill the air. The best part? It’s incredibly simple to prepare, making it a go-to recipe in my kitchen. 

From its comforting flavors to its ability to adapt based on what you have on hand, this soup is destined to become a staple. 

So, don your apron, whip it up, and share it with loved ones. After all, good food is meant to be shared. Enjoy your cozy night in, and don’t forget to come back for more delicious recipes!

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Vegetarian Onion Soup Recipe – Gourmet And Food

Difficulty: Intermediate Prep Time 15 mins Cook Time 1 hr Total Time 1 hr 15 mins
Servings: 4 Calories: 60 kcal
Best Season: Suitable throughout the year

Description

Before diving into the delicious world of vegetarian onion soup, consider what you can enjoy alongside it. This soup shines when paired with a variety of complementary dishes. A crisp side salad featuring a burst of seasonal vegetables, such as mixed greens and cherry tomatoes dressed with a light vinaigrette, can help balance the rich flavors of the soup. 

A slice of fresh, crusty bread, whether sourdough or a baguette, enhances the experience and captures the essence of the soup perfectly. If you enjoy cheese, a light assortment with soft cheeses like goat cheese and fresh herbs pairs exceptionally well. For something with a kick, bruschetta topped with tomatoes, garlic, and basil beautifully complements the warmth of the soup.

Ingredients

Instructions

Step 1: Gather Your Ingredients

  1. Start by assembling all the ingredients. This not only makes your life easier but also keeps you organized. Once you have everything within arm’s reach, you’re setting yourself up for a smooth cooking session.

Step 2: Caramelize the Onions

  1. In a large pot, heat the olive oil over medium heat. Add your sliced onions and sea salt. What will follow is a beautiful transformation. Stir occasionally, allowing the onions to soften and turn golden brown, about 30 to 40 minutes. Be patient; this step is golden!

Step 3: Add Garlic and Spices

  1. Once your onions are perfectly caramelized, add the minced garlic and smoked paprika. This will add rich flavor. Stir and cook for an additional 2-3 minutes.

Step 4: Deglaze the Pot

  1. Pour the red wine into the pot and scrape up any delicious bits stuck to the bottom. Let it simmer for 5 minutes until the wine reduces slightly.

Step 5: Add Broth and Herbs

  1. Pour in the vegetable broth, add bay leaves, thyme, black pepper, and sugar. Bring the mixture to a boil, then reduce heat and let it simmer for about 20 minutes.

Step 6: Final Touches

  1. Stir in the balsamic vinegar for an extra depth of flavor. If you're feeling cheesy, add the grated Gruyère cheese now or reserve it for serving.

Step 7: Prepare the Bread

  1. While the soup simmers, toast thick slices of bread until golden. If desired, top with cheese and broil until bubbling and melty.

Step 8: Serve & Enjoy!

  1. Ladle the soup into bowls, top with the cheesy bread, and dig in!

Nutrition Facts

Servings 4


Amount Per Serving
Calories 73kcal
% Daily Value *
Total Fat 8g13%
Saturated Fat 6.4g32%
Cholesterol 1mg1%
Sodium 23mg1%
Total Carbohydrate 1g1%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

Note

  • Take Your Time: Caramelization is key. The longer you cook the onions, the deeper the flavor.
  • Wine Selection: Use wine you would drink, as it directly impacts the soup's flavor.
  • Make Ahead: This soup allows for advance prep. The flavors deepen over time.
  • Storage: Keep leftovers in an airtight container in the fridge for up to three days.
  • Freezing: You can freeze this soup for up to a month. Thaw and reheat on the stove when you’re ready to enjoy!
Keywords: vegetarian onion soup recipe
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Frequently Asked Questions

Expand All:

1. Can I make this soup ahead of time?

Can I make this soup ahead of time?

2. Is this recipe gluten-free?

The recipe can be gluten-free, provided you swap out the bread for a gluten-free option. Many stores now carry tasty gluten-free alternatives.

3. Can I add extra vegetables?

Definitely! Feel free to add mushrooms, spinach, or zucchini for additional nutrients and flavors. Just be mindful of cooking times.

4. What’s the best way to reheat the soup?

Reheating on the stovetop is ideal. Gently warm over medium heat, stirring occasionally. It prevents the soup from scorching and keeps it delicious.

Maria George, Cookbook Author and Registered Dietitian
Maria George Registered Dietitian & Cookbook Author

Maria George is a cookbook author and registered dietitian, passionate about merging gourmet cuisine with nutrition through her blog Gourmet And Food. Based in Illinois, she draws on her rich culinary background to create elegant, approachable recipes that celebrate quality ingredients and creativity in the kitchen. Maria’s goal is to inspire food lovers of all levels to explore gourmet cooking and enjoy the art of dining.

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