Creamy French Onion Chicken Tenderloin Soup with Parmesan Crostini

When the weather turns chilly, there’s nothing quite like a warm bowl of comforting soup to soothe your soul. Today, we’re bringing you a delightful recipe that puts a unique spin on a French classic—Creamy French Onion Chicken Tenderloin Soup, served with crispy, cheesy Parmesan Crostini. This rich and flavorful dish blends the savory goodness of caramelized onions, perfectly seasoned chicken tenderloins, and a creamy broth, creating a luxurious, hearty meal perfect for cozy nights.

Why This Soup Stands Out

At the heart of this recipe are two key elements: the deeply caramelized onions, which bring a natural sweetness and depth of flavor, and the tender chicken, which soaks up all the goodness of the rich broth. Unlike a traditional French onion soup, which typically uses beef broth, this version opts for a creamy chicken broth that pairs wonderfully with the tenderloins. Add in a splash of white wine for brightness and a sprinkle of fresh thyme, and you have a soup that’s both comforting and sophisticated.

The Parmesan Crostini: A Crispy, Cheesy Accent

No French onion soup is complete without a cheesy topping, and this version is no different. Instead of melting cheese directly over the soup, we take it one step further with crispy Parmesan crostini. These golden-baked baguette slices, topped with bubbly Parmesan, offer the perfect textural contrast to the creamy soup, adding a layer of indulgence that’s sure to make every bite irresistible.

Ingredients You’ll Need

  • 2 lbs chicken tenderloins
  • 4 large onions, thinly sliced
  • 4 cloves garlic, minced
  • 4 cups chicken broth
  • 1 cup heavy cream
  • 1 cup white wine
  • 2 tablespoons olive oil
  • 1 tablespoon fresh thyme leaves
  • 1 bay leaf
  • Salt and pepper, to taste
  • 4 slices of baguette
  • 1 cup Parmesan cheese, shredded

Step-by-Step Instructions

1. Brown the Chicken Tenderloins
Start by heating olive oil in a large pot over medium heat. Brown the chicken tenderloins on all sides until they develop a golden crust. This not only locks in their flavor but also adds depth to the soup. Once browned, remove the chicken and set it aside.

2. Caramelize the Onions
Using the same pot, add the thinly sliced onions and cook them slowly for about 20-25 minutes. The key here is patience—allowing the onions to caramelize fully will give your soup that signature French onion flavor. Once the onions are golden and fragrant, add the minced garlic and sauté for another minute.

3. Deglaze and Simmer
Return the browned chicken tenderloins to the pot, and pour in the white wine to deglaze, scraping up all those delicious browned bits from the bottom. This step intensifies the flavor, giving your broth a rich, savory base.

4. Build the Broth
Pour in the chicken broth, then add fresh thyme, a bay leaf, salt, and pepper. Bring everything to a boil, then reduce the heat to a gentle simmer. Cover and cook for 30 minutes, allowing the flavors to meld together and the chicken to cook through.

5. Add the Cream
Once the chicken is tender, stir in the heavy cream and let the soup simmer for another 10 minutes. This final touch transforms the broth into a velvety, creamy consistency that pairs beautifully with the caramelized onions and chicken.

6. Prepare the Parmesan Crostini
While the soup is finishing, preheat your oven to 400°F (200°C). Place baguette slices on a baking sheet, top them with shredded Parmesan cheese, and bake for 5-7 minutes until the cheese is bubbly and golden.

7. Serve and Enjoy
Ladle the hot, creamy French onion chicken soup into bowls, and top each serving with a crispy Parmesan crostini. The combination of flavors and textures will make this dish an instant favorite!

A Cozy Bowl of Comfort

This Creamy French Onion Chicken Tenderloin Soup is the ultimate comfort food—rich, savory, and topped with a deliciously cheesy crostini. Whether you’re serving it as a hearty lunch or a cozy dinner, it’s sure to impress your family and friends. The creamy broth, caramelized onions, and tender chicken come together in perfect harmony, creating a dish that warms the heart and soul.

So, the next time you’re craving something warm and comforting, give this recipe a try—you won’t be disappointed!

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Creamy French Onion Chicken Tenderloin Soup with Parmesan Crostini


  • Author: Alice

Description

Warm up your evenings with this delightful twist on a classic—Creamy French Onion Chicken Tenderloin Soup served with crispy Parmesan Crostini. Perfectly seasoned tenderloins and caramelized onions simmered in a rich, creamy broth make a comforting bowl that’s topped with crisp, cheesy crostini for an added layer of indulgence.


Ingredients

Scale

2 lbs chicken tenderloins
4 large onions, thinly sliced
4 cloves garlic, minced
4 cups chicken broth
1 cup heavy cream
1 cup white wine
2 tablespoons olive oil
1 tablespoon thyme leaves
1 bay leaf
Salt and pepper to taste
4 slices of baguette
1 cup Parmesan cheese, shredded


Instructions

In a large pot, heat olive oil over medium heat. Add the chicken tenderloins and brown on all sides. Remove and set aside.

In the same pot, add the onions and cook until caramelized, about 20-25 minutes. Add garlic and cook for an additional minute.

Return the chicken tenderloins to the pot and add the white wine, scraping the bottom to deglaze.

Pour in the chicken broth and add thyme, bay leaf, salt, and pepper. Bring to a boil, then reduce to a simmer. Cover and cook for about 30 minutes, or until the chicken is cooked through.

Stir in the heavy cream and let it simmer for another 10 minutes until nicely blended.

Preheat the oven to 400°F (200°C).

Place baguette slices on a baking sheet, top with Parmesan cheese, and bake until bubbly and golden, about 5-7 minutes.

Serve the soup hot, topped with Parmesan crostini.

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