Jul 14 2026
RestaurantsThe Castle, Black RockFrench Onion Soup Recipe

French Onion Soup Recipe

Time1h 30m
Serves6

Make French Onion Soup Recipe in just 1h 30m. Get the full recipe with step-by-step instructions at pekinthechef.com.

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Ingredients

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Base Ingredients

Method

Soup Preparation

  1. 1

    Slice the Onions

    Begin by slicing the yellow onions thinly. This will help them caramelize evenly.

  2. 2

    Cook the Onions

    In a large pot, melt the unsalted butter and olive oil over medium heat. Add the sliced onions and stir to coat. Cook, stirring occasionally, for about 30-40 minutes until the onions are caramelized and golden brown.

  3. 3

    Add Garlic

    Once the onions are caramelized, add minced garlic and cook for an additional 1-2 minutes until fragrant.

  4. 4

    Deglaze with Wine

    Pour in the dry white wine, scraping the bottom of the pot to release any stuck bits. Allow it to simmer for 5 minutes.

  5. 5

    Add Broth and Seasonings

    Add the beef broth, bay leaves, thyme, salt, and pepper. Bring to a boil, then reduce to a simmer. Let it cook uncovered for 30 minutes.

  6. 6

    Adjust Seasoning

    Taste the soup and adjust the seasoning with more salt and pepper as necessary.

Topping Preparation

  1. 7

    Prepare the Baguette

    While the soup simmers, preheat your oven to 400°F (200°C). Slice the French baguette into 1-inch thick slices.

  2. 8

    Toast the Baguette

    Place the slices on a baking sheet and toast in the oven for about 5-7 minutes until golden brown.

  3. 9

    Prepare Cheese Topping

    In a bowl, mix the Gruyère and Parmesan cheese together.

Final Assembly

  1. 10

    Broil the Soup

    Ladle the hot soup into oven-safe bowls. Top each bowl with toasted baguette slices and sprinkle the cheese mixture generously on top.

  2. 11

    Melt the Cheese

    Place the bowls under the broiler for about 2-3 minutes or until the cheese is bubbly and golden brown. Keep a close eye to avoid burning.

  3. 12

    Serve

    Remove from the oven and let cool slightly before serving. Enjoy your French onion soup!

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