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Overhead photo of two bowls of French Onion Soup
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5 from 2 votes

French Onion Soup

French Onion Soup is the perfect cozy soup recipe. Made with just a few ingredients and topped with toast and melty cheese, you will love this fantastic soup.
Prep Time20 minutes
Cook Time1 hour 10 minutes
Total Time1 hour 30 minutes
Course: Soup
Cuisine: French
Servings: 4 bowls
Author: Lisa Longley

Ingredients

French Onion Soup

  • 4 tablespoons unsalted butter
  • 5 large yellow onions thinly sliced
  • 1 teaspoon kosher salt
  • 1/4 teaspoon black pepper
  • 1/2 cup sherry
  • 6 cups beef broth
  • 1 teaspoon dried thyme
  • 1 bay leaf

Gruyere Toast

  • 8 ounces french baguette cut into 1/2 inch pieces
  • 6 ounces gruyere cheese shredded

Instructions

French Onion Soup

  • In a large dutch oven over medium heat, melt the butter.
    4 tablespoons unsalted butter
  • Add in the onions, salt, and black pepper. Cook, stirring often until the onions are caramelized, about 30 - 40 minutes.
    5 large yellow onions, 1 teaspoon kosher salt, 1/4 teaspoon black pepper
  • Add the sherry, deglazing the pan. Then stir in the beef broth. Add the thyme and the bay leaf and bring the mixture to a boil. Reduce to a simmer and cook, uncovered, for 20 minutes.
    1/2 cup sherry, 6 cups beef broth, 1 teaspoon dried thyme, 1 bay leaf
  • Taste the soup and add more salt or pepper as needed.

Gruyere Toast

  • Preheat your oven to 400 degrees Fahrenheit.
  • Place the baguette pieces on a rimmed baking sheet. Bake for 10 minutes, flipping once in between.
  • Add the soup to broiler-safe bowls. Top with pieces of toast and shredded cheese. Place under the broiler on rimmed baking sheets, and broil until the cheese is melted.