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Cream Soup

A simple soup made by boiling a vegetable and blending it with a butter‑flour roux and milk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Cream Soup

Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Cream Soup

Ingredients

Directions

Prepare the vegetable

  1. In a pot, bring your chosen vegetable to a boil.

Make the sauce

  1. In a separate pan, warm the butter.

  2. Rub the flour into the melted butter.

  3. Gradually add a little milk to the butter and flour mixture, stirring well.

  4. Add the remaining milk as needed while cooking.

Combine

  1. Pour in the vegetable juice or the vegetable itself, rubbed through a sieve.

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. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Flour + spinachtop 10% of all pairs
    Smell alikemoderate
    Cooked together1,564 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Milk + spinachtop 22% of all pairs
    Smell alikemoderate
    Cooked together914 recipes

    Shared aroma: 2-undecenal (sweet).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Butter
Melts into the base of the sauce, adding richness and a smooth mouthfeel.
Flour
Thickens the melted butter into a roux, giving the soup body.
Milk
Hydrates the roux as it is added, creating a creamy, pourable texture.
Vegetable
Provides the main flavour and, when sieved, the soup's body and colour.

The step that matters

Adding the milk gradually. Adding milk a little at a time to the butter and flour lets the starch hydrate evenly and stirring keeps it smooth. Adding it all at once can trap lumps of flour that are hard to remove.

Swap the spinach

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

  1. Potatofits better
  2. Arrowrootfits better
  3. Leekfits better
  4. Spinachthe original

Fit is the average pairing score against butter, flour, milk. 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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