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French Onion Soup

1 hour
6 servings

Mushroom-infused French Onion Soup: a cozy blend of caramelized onions, earthy mushrooms, and melted Gruyere on toasted baguette slices. Warm your soul!

French Onion Soup
Mushroom-infused French Onion Soup: a cozy blend of caramelized onions, earthy mushrooms, and melted Gruyere on toasted baguette slices. Warm your soul!

Today, we’re diving into the heartwarming world of soups, specifically a Mushroom-infused French Onion Symphony.

Imagine rich, caramelized onions, earthy mushrooms, and a cheesy crescendo on toasted baguette slices – it’s like a flavor orchestra in your mouth!

French Onion Soup

What is French Onion Soup?

In the culinary saga of soups, French Onion Soup emerges as a timeless legend, a gastronomic tale passed down through generations. Travel back to Roman times, where onions, abundant and easy to cultivate, took center stage in kitchens across Europe.

It wasn’t until the 18th century in France, though, that this humble vegetable transformed into the star of its very own show. As the story goes, a resourceful Parisian innkeeper, faced with a surplus of onions, decided to elevate them from a supporting role to the lead.

Slow-cooked to sweet perfection, these onions became the heart and soul of a soup that would captivate taste buds for centuries.

Why You’ll Love this Recipe

Let me paint a savory picture for you. Imagine sweet, caramelized onions doing the tango with earthy mushrooms, all swirled in a broth that’s a symphony of flavors. Now, imagine this heavenly concoction under a golden canopy of bubbling Gruyère. Are you drooling yet? Because I am.


  • Butter: The unsung hero that kickstarts the caramelization party.
  • Onions and Garlic: The dynamic duo that brings sweetness and depth.
  • Mushrooms: Because life’s too short to not add mushrooms to everything.
  • Red Wine and Worcestershire Sauce: A splash of sophistication and a dash of umami.
  • Thyme: The tiny herb that adds a fragrant melody.
  • All-Purpose Flour: The unsung thickening agent – the wizard behind the scenes.
  • Chicken Broth: The liquid gold that ties everything together.
  • French Baguette and Gruyère: The crunchy crown and the gooey finale.

Substitutions & Additions

Feeling rebellious? Swap the mushrooms for spinach or toss in some crispy bacon.

Vegan? Use vegetable broth, and opt for vegan cheese.

This recipe is your canvas; paint it with flavors you love.

Equipment Needed for French Onion Soup

How to Make this Recipe

In a cauldron – just kidding, a large pot – dance your onions to caramel perfection. Add the wine, mushrooms, Worcestershire, and flour – let the flavors tango.

Pour in the chicken broth, season, simmer, and let the magic happen. Toast some baguette slices, crown them with Gruyère, and let them sunbathe under the broiler.

Ladle the liquid love into bowls, and voilà – you’re a soup sorcerer!

Cooking Tips & Tricks

Pro tip: Patience is your sous chef. Let those onions caramel dance undisturbed for maximum flavor.

Want a twist? Infuse the broth with a hint of rosemary or swap Gruyère for a Swiss-cheddar blend. The kitchen is your playground; play away!

French Onion Soup

Serving Suggestions

Top your French Onion Symphony with a sprinkle of fresh thyme. Pair it with a crisp salad or enjoy it solo – there are no rules. Just savor every spoonful and let the warmth envelop you like a culinary hug.

Storage Suggestions

Got leftovers? Store them in an airtight container in the fridge. The flavors meld and intensify overnight, promising an even more decadent experience the next day. Just reheat and relish.

French Onion Soup

Recipe FAQ

Can I use white onions instead of yellow? Absolutely! White onions bring a milder flavor but still waltz beautifully with the other ingredients.

What’s the best wine for this recipe? A dry red wine like Cabernet Sauvignon adds depth, but feel free to use what you have.

Can I freeze the soup? While the broth freezes well, the texture of the onions may change. Fresh is best, but freezing won’t banish the magic entirely.

In a world that sometimes feels chaotic, a bowl of French Onion Soup is a savory antidote. It’s warmth, love, and a hint of rebellion – all simmered to perfection.

So, tie on your apron, cue the cozy vibes, and let’s create a symphony in a soup pot. Because sometimes, a simple bowl of goodness is all you need.

French Onion Soup

French Onion Soup

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Mushroom-infused French Onion Soup: a cozy blend of caramelized onions, earthy mushrooms, and melted Gruyere on toasted baguette slices. Warm your soul!
Yield 6 servings
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour


  • 6 Tbsp unsalted butter
  • 4 large yellow onions (or white onions) sliced
  • 3 cloves garlic minced
  • 2 fresh thyme chopped
  • 16 oz baby bella mushrooms
  • 1 1/4 cup red wine
  • 1 Tbsp worcestershire sauce
  • 2 Tbsp all-purpose flour
  • 8 cups chicken broth
  • 1 French baguette sliced
  • 1/2 lb gruyere cheese shredded or sliced


  • In a large pot, or Dutch oven, melt the butter over medium-high heat. Add the onions and garlic, seasoning generously with salt and pepper. Cook, stirring occasionally, for about 10-15 minutes until onions are softened and beginning to caramelize.
  • Add 1 cup of the wine along with the mushrooms and cook, stirring occasionally, for about 10 minutes to soften the mushrooms. Add remaining wine, Worcestershire sauce, and flour then stir to combine; cooking for additional 5 minutes.
  • Add the chicken broth to the pot, and season again with salt and pepper. Bring to a boil, then reduce heat and simmer for 10-15 minutes.
  • While simmering, preheat the oven to 400° F. Lay your bread slices on a sheet pan and toast in the oven for 4-5 minutes, watching closely to make sure they don't burn. Remove from oven and turn up to broil.
  • Once the soup has simmered, ladle into oven-safe bowls and place on a baking sheet. Top the bread with a generous handful of shredded cheese (or a couple slices if using sliced).
  • Place the sheet pan of soups into the broiler for 3-4 minutes or until the cheese is fully melted and just starting to bubble and brown.
Tried this recipe?Snap a photo and mention @JenniferMeyering
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