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Potato Soup

A creamy potato soup made with mashed potatoes, milk, butter, flour, and seasonings.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Potato Soup

Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Potato Soup

Ingredients

Directions

  1. Cook the potatoes until soft, then drain and mash them.

  2. Add the hot milk, salt, white pepper, onion juice, and flour to the mashed potatoes.

  3. Strain the mixture to make a smooth sauce.

  4. Stir in the chopped parsley just 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. Potato + oniontop 3% of all pairs
    Smell alikemoderate
    Cooked together9,023 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Potato + parsleytop 5% of all pairs
    Smell alikemoderate
    Cooked together2,855 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

  3. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

  4. Onion + parsleytop 9% of all pairs
    Smell alikemoderate
    Cooked together25,843 recipes

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

  5. Potato + milktop 9% of all pairs
    Smell alikemoderate
    Cooked together3,611 recipes

    Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).

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

What each ingredient does

Potatoes
Provide the starchy body that thickens the soup as they are mashed.
Milk
Adds moisture and creaminess, loosening the mashed potatoes into a smooth liquid.
Flour
Thickens the mixture, giving it a sauce-like body.
Butter
Adds richness and a smooth mouthfeel to the soup.

The step that matters

Straining the mixture. Straining removes lumps of potato and any fibrous bits, so the soup becomes smooth. Pushing the mash through while it is still hot makes it easier to pass through the sieve.

Swap the white pepper

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

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

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