French Onion Soup

French Onion Soup is a medium French recipe that serves 4. 350 calories per serving. Recipe by Binging with Babish on YouTube.

Prep: 28 min | Cook: 57 min | Total: 1 hr 40 min

Cost: $16.80 total, $4.20 per serving

Ingredients

  • 3 pounds Spanish Onions (thinly sliced pole‑to‑pole)
  • 3 tablespoons Olive Oil (extra‑virgin, divided)
  • 6 cups Beef Broth (high‑quality store‑bought)
  • 1 bunch Fresh Parsley (roughly chopped)
  • 1 medium Carrot (thinly sliced)
  • 4 sprigs Fresh Thyme
  • 6 cloves Garlic Cloves (halved, plus 1 extra for rubbing baguette)
  • 2 pieces Bay Leaves (dried)
  • 1 teaspoon Peppercorns (whole, sprinkled)
  • 2 pieces Whole Cloves (optional, for extra depth)
  • 1 piece Parmesan Cheese Rind (from leftover cheese, adds umami)
  • 2 tablespoons All‑Purpose Flour (for thickening)
  • 1 cup Dry Sherry (for deglazing)
  • 1 teaspoon Fish Sauce (optional umami boost)
  • 1 teaspoon Soy Sauce (optional umami boost)
  • 1 baguette French Baguette (day‑old, sliced thick)
  • to taste Kosher Salt (for seasoning)
  • to taste Freshly Ground Black Pepper (for seasoning)
  • 2 cups Gruyère Cheese (shredded)
  • 2 tablespoons Chives (chopped, for garnish)

Instructions

  1. Slice the Onions

    Trim the root and tip off each onion, remove the basal plate, then slice the onions thinly pole‑to‑pole for better structural integrity.

    Time: PT15M

  2. Prep Aromatics

    Roughly chop parsley, slice the carrot, gather thyme sprigs, halve the garlic cloves, and set aside bay leaves, peppercorns, and whole cloves.

    Time: PT5M

  3. Caramelize Onions

    Heat the Dutch oven over medium heat, add 2 Tbsp olive oil, then add all sliced onions. Cook, stirring frequently and scraping the sides, until they become soft, jammy, and deep golden‑brown (about 35 minutes).

    Time: PT35M

    Temperature: medium

  4. Add Flour

    Sprinkle 2 Tbsp all‑purpose flour over the caramelized onions and cook for 2 minutes, stirring constantly, to create a roux that will thicken the soup later.

    Time: PT2M

  5. Deglaze with Sherry

    Pour in 1 cup dry sherry, stirring to scrape up the fond from the bottom of the pot. Let the alcohol evaporate for about 2 minutes.

    Time: PT2M

  6. Add Broth and Aromatics

    Add the 6 cups beef broth, Parmesan rind, parsley, carrot, thyme, halved garlic, bay leaves, peppercorns, and cloves. Bring to a gentle simmer and cook for 8 minutes to meld flavors.

    Time: PT8M

    Temperature: low simmer

  7. Umami Boost

    Stir in 1 tsp fish sauce and 1 tsp soy sauce for extra depth. Cook for 1 minute.

    Time: PT1M

  8. Toast Baguette Slices

    Preheat the oven to 425°F. Arrange thick baguette slices on a baking sheet, drizzle with remaining olive oil, season with kosher salt and black pepper, and toast for 5 minutes until golden.

    Time: PT5M

    Temperature: 425°F

  9. Garlic Rub Baguette

    Slice a garlic clove in half and rub the cut side onto each toasted baguette slice to impart subtle garlic flavor.

    Time: PT1M

  10. Assemble in Crocks

    Ladle hot soup into broiler‑safe crocks, top with a generous layer of shredded Gruyère, place 1–2 baguette slices on top, then add another layer of cheese until the surface is fully covered.

    Time: PT3M

  11. Broil Until Bubbly

    Place the crocks under a preheated broiler for 4 minutes, or until the cheese is melted, golden, and bubbly.

    Time: PT4M

    Temperature: broiler

  12. Garnish and Serve

    Sprinkle chopped chives over each serving for color and fresh flavor. Serve immediately while hot.

    Time: PT1M

Nutrition Facts

Calories
350
Protein
15 g
Carbohydrates
30 g
Fat
18 g
Fiber
4 g

Dietary info: Contains meat, Contains dairy, Contains gluten

Allergens: Dairy, Gluten, Soy

Last updated: March 15, 2026

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French Onion Soup

Recipe by Binging with Babish

A classic French onion soup featuring deeply caramelized Spanish onions, rich beef broth, a splash of dry sherry, and a melty topping of Gruyère cheese and toasted baguette croutons. Perfect for a cozy winter meal.

MediumFrenchServes 4

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
36m
Prep
46m
Cook
10m
Cleanup
1h 32m
Total

Cost Breakdown

$16.80
Total cost
$4.20
Per serving

Critical Success Points

  • Caramelize onions until deep golden‑brown
  • Add flour and cook to form a roux
  • Deglaze with dry sherry
  • Assemble with cheese and broil until bubbly

Safety Warnings

  • Hot oil and caramelizing onions can cause burns; handle with care
  • Dry sherry is flammable; keep away from open flame
  • Broiler produces intense heat; use oven mitts when handling crocks

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