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Brown Soup

A savory onion soup with rice, simmered in stock and seasoned with salt and white pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Brown Soup

Why it works: Onion and rice are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 10,433 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Brown Soup

Ingredients

Directions

Prepare the base

  1. Fry the diced onions in butter until nicely browned.

  2. Pour enough stock over the onions to cover them and let them simmer gently until tender.

Finish the soup

  1. Pass the mixture through a sieve and add 2 quarts of good stock to the pulp.

  2. Return the mixture to the pot, add the rice, and simmer gently until the rice is tender.

  3. Season with salt and white pepper before serving.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Photo for illustrative purposes only · Contact us to use it

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Onion + ricetop 9% of all pairs
    Smell alikemoderate
    Cooked together10,433 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  2. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Butter + ricetop 16% of all pairs
    Smell alikemoderate
    Cooked together9,645 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  4. Rice + white peppertop 28% of all pairs
    Smell alikelow
    Cooked together439 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Butter + white peppertop 28% of all pairs
    Smell alikelow
    Cooked together3,814 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Onions
Form the main body of the soup and, when browned, add deep sweet flavour.
Butter
Fat for frying the onions, helping them brown and carry flavour.
Stock
Liquid that softens the onions and makes up the soup's body.
Rice
Thickens the soup as it cooks and softens it into the broth.

The step that matters

Browning the onions. Onions need enough time in hot fat to brown rather than steam. Browning drives Maillard reactions that create the deep, savoury colour and flavour the soup depends on.

Swap the white pepper

How well each one fits the dish's main ingredients (onion, butter, rice):

  1. Garlicfits better
  2. Turmericfits better
  3. Capersfits better
  4. White pepperthe original

Fit is the average pairing score against onion, butter, rice. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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