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Potato Soup

A creamy soup made from boiled potatoes, milk, butter, salt, pepper, and grated onion.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 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

Prepare the potatoes

  1. Boil the potatoes until tender.

  2. Remove the skins.

  3. Mash the potatoes very fine.

Make the soup

  1. Add enough hot milk to create a creamy consistency.

  2. Season with salt, pepper, butter, and grated onion.

  3. Heat the mixture until it is scalding 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. Potato + oniontop 3% of all pairs
    Smell alikemoderate
    Cooked together9,023 recipes

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

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

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

  3. Potato + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together8,305 recipes

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

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

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

  5. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

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 when mashed fine.
Hot milk
Adds moisture and creaminess, loosening the mashed potato into a smooth soup.
Butter
Adds fat for richness and a smoother, silkier mouthfeel.
Grated onion
Adds savory aroma and a mild sharpness to the soup.

The step that matters

Heat the mixture until it is scalding hot. Mashed potato and milk can scorch on the bottom of the pot if heated too fast. Heating gently and stirring keeps the milk from sticking and burning while the starch stays smooth.

Swap the onion

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

  1. Capsicumfits better
  2. Asparagusfits about as well
  3. Tomatofits about as well
  4. Onionthe original

Fit is the average pairing score against potato, milk, pepper, butter. 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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