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Stove or Spinach Soup

A soup made with spinach, onions, butter, flour, cream, and optional peas, simmered in water.

From an old cookbook · modernised transcription
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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 ↓

Stove or Spinach Soup

Ingredients

Directions

Prepare the spinach

  1. Pick and clean the spinach, then parboil it.

  2. Place the spinach in a colander to drain the bitter water, rinse it with cold water for 1–2 minutes, then press out excess water.

Make the soup

  1. Boil 2 quarts of water with 3 sliced onions.

  2. Knead 2 ounces of fresh butter with 1½ tablespoons of flour, then mix it with the spinach.

  3. Add the spinach mixture to the boiling water and onions, and cook for 15 minutes.

  4. Stir in ½ pint of cream or good milk, salt, and pepper, and boil for an additional 15 minutes.

  5. Add 1 quart of green peas during the cooking process.

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.

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. Spinach + peastop 8% of all pairs
    Smell alikemoderate
    Cooked together550 recipes

    Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).

  3. Onion + spinachtop 8% of all pairs
    Smell alikestrong
    Cooked together3,336 recipes

    Shared aroma: coumarin (sweet, hay).

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

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

  5. Spinach + flourtop 10% of all pairs
    Smell alikemoderate
    Cooked together1,564 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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 colour and vegetable flavour.
Butter and flour
Kneaded together, the flour thickens the soup and the butter adds richness and smooth texture.
Cream or milk
Adds richness and a creamy, smooth texture to the finished soup.
Onions
Build the savoury base flavour of the broth.

Swap the peas

The recipe marks peas as optional. How well each one fits the dish's main ingredients (onion, spinach, butter, flour, cream, pepper):

  1. Cashew nutfits better
  2. Lentilsfits better
  3. Chickpeafits better
  4. Peasthe original

Fit is the average pairing score against onion, spinach, butter, flour, 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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