The Kitchen · Recipe

French Onion Soup

Soups & stews

Slowly caramelized onions in a dark broth, with a cheese-topped baguette toast.

Prep: 30 min; Cook: 3 hours (source) · 5

Reported source details; omitted times or yields remain unreported.

Recipe source: joe-powerhouse · Public Domain Recipes

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AI-generated serving illustration of french onion soup with selected recipe ingredients on Taj Mahal quartzite, with flax linen and a brass utensil.

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ON THE RECIPE CARD

Gather & make

5 (source) · Original source quantities

Gather

  • 6-7 Onions, cut into quarter moons
  • 1 stick of butter
  • 1/2 cup Olive oil
  • Salt, to taste
  • 1 Baguette Loaf, sliced
  • 1 Can of Chicken Broth
  • 3 Garlic cloves, finely chopped
  • 1/4 cup brown sugar
  • Balsamic vinegar, to taste
  • Worcestershire Sauce, to taste
  • Soy Sauce, to taste
  • 64oz Beef Broth
  • 2-3 Bay Leaves
  • Melty cheese, preferably guereye or swiss

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Make

  1. 01

    Sweat the onions in a covered Dutch oven over med-low heat, salt them, with 1 whole stick of butter and some olive oil for about 2 hours stirring occasionally but increasing in frequency as the heat gets raised over time.

  2. 02

    When the onions are soft and mostly shrunken down, and mostly covered by the butter, oil, and onion juice, strain and collect the juice in a bowl. Brush the onion juice over each side of slices of baguette bread.

  3. 03

    Return the strained onions to med-high heat, uncovered, stirring and deglazing with chicken broth frequently but not so frequent that they turn to mush. When the entire can of chicken broth has been added for deglazing, add 3 finely chopped garlic cloves, 1/4 cup brown sugar, balsamic vinegar, Worcestershire sauce, soy sauce. Wait until the pot dries and a fond is formed in between adding each liquid ingredient slowly. Keep slowly deglazing with the wooden spoon and caramelizing those onions.

  4. 04

    After onions are thoroughly caramelized and there are no more liquid ingredients to add, pour in 64oz beef broth and 2-3 Bay leaves. Cover on medium heat until it simmers. It is now ready to serve!

  5. 05

    Put sliced (and onion-juice brushed) bread in 400F oven until toasted, then under the broiler covered in cheese until melted. Soup can be served poured over the bread slices or the bread floating on top.

joe-powerhouse · Public Domain Recipes · French Onion Soup. Public-domain dedication / Unlicense. Editorially checked for ingredient/method consistency. Not independently kitchen-tested by Herbologium. Source-reported and editorially estimated times are labeled separately.

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Collection updated: October 24, 2026

joe-powerhouse · Public Domain Recipes. (2021). French Onion Soup.

https://publicdomainrecipes.com/french-onion-soup/

Reviewed version: https://github.com/ronaldl29/public-domain-recipes/blob/134e22f11e4d14e66ee587b1dd3a266e5646d387/content/french-onion-soup.md

Public-domain dedication / Unlicense · https://github.com/ronaldl29/public-domain-recipes/blob/134e22f11e4d14e66ee587b1dd3a266e5646d387/LICENSE.md

Changes: Ingredients and method adapted from the pinned source; Markdown links removed. Original introduction and photographs omitted. Herbologium supplies contextual copy and ingredient links; fixed quantities and actual source author retained.

Editorially checked for ingredient/method consistency. Not independently kitchen-tested by Herbologium. Source-reported and editorially estimated times are labeled separately.

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joe-powerhouse · Public Domain Recipes · 2021

Public-domain dedication / Unlicense

Editorially checked for ingredient/method consistency. Not independently kitchen-tested by Herbologium. Source-reported and editorially estimated times are labeled separately.

What changed in this presentation?

Ingredients and method adapted from the pinned source; Markdown links removed. Original introduction and photographs omitted. Herbologium supplies contextual copy and ingredient links; fixed quantities and actual source author retained.

Public-domain dedication / Unlicense · terms ↗Source version & contributor history ↗
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Slowly caramelized onions in a dark broth, with a cheese-topped baguette toast.

Editorially checked for ingredient/method consistency. Not independently kitchen-tested by Herbologium. Source-reported and editorially estimated times are labeled separately.

joe-powerhouse · Public Domain Recipes

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