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Spinach Soup

A soup made with spinach, butter, white stock, cream, salt, and pepper.

From an old cookbook · modernised transcription
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Spinach Soup

Why it works: Spinach and pepper are a kitchen classic. They rank in the top 6% of all ingredient pairs, and cooks put them together in 3,400 recipes. Both carry nonanal, which smells fat, citrus. The science ↓

Spinach Soup

Ingredients

Directions

Prepare the spinach

  1. Wash the spinach thoroughly, then remove the stalks.

  2. Boil the spinach with a tiny pinch of baking soda and salt, then drain it.

  3. Pass the spinach through a fine sieve.

Make the soup

  1. Melt the butter in a saucepan, then add the spinach and white stock.

  2. Bring the mixture to a boil.

  3. Season with salt and pepper, then stir in the cream.

  4. Serve hot.

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. Spinach + peppertop 6% of all pairs
    Smell alikemoderate
    Cooked together3,400 recipes

    Shared aroma: nonanal (fat, citrus).

  2. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  3. Spinach + creamtop 17% of all pairs
    Smell alikemoderate
    Cooked together1,130 recipes

    Shared aroma: octanal (fat, soap).

  4. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

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

  5. Cream + peppertop 23% of all pairs
    Smell alikelow
    Cooked together21,449 recipes

    Shared aroma: acetic acid (sour, vinegar).

Cream and pepper barely smell alike, yet cooks put them together in 21,449 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

Spinach
Forms the body of the soup and gives it its green color and earthy flavor.
Butter
Adds fat for a rich mouthfeel and carries flavor through the soup.
White stock
Provides the liquid that thins the purée and adds savory depth.
Cream
Adds richness and a smoother, silkier texture.

The step that matters

Boil the spinach with baking soda. Spinach keeps its bright green color only when cooked briefly in water. Baking soda raises the pH and helps preserve chlorophyll, but too much can make the spinach soapy and mushy, so use only the tiny pinch specified.

Swap the spinach

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

  1. Potatofits better
  2. Spinachthe original
  3. Capsicumfits about as well
  4. Onionfits about as well

Fit is the average pairing score against butter, cream, pepper. 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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