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Cream of Potato Soup

A creamy soup made from potatoes, butter, flour, milk, and water.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Cream of Potato 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 of Potato Soup

Ingredients

Directions

Prepare

  1. Peel and chop the potatoes.

Make the soup

  1. In a pot, melt the butter over medium heat.

  2. Add the flour and stir to form a roux.

  3. Gradually add the milk and water, stirring constantly.

  4. Add the chopped potatoes and cook until tender.

  5. Blend until smooth and 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. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

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

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

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Potato + buttertop 13% of all pairs
    Smell alikemoderate
    Cooked together6,456 recipes

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

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

    Shared aroma: isobutyraldehyde (malty, green).

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

Potatoes
Provide the main body and starch that thickens the soup as they break down.
Butter
Adds richness and fat that carries flavor and smooths the texture.
Flour
Forms a roux with the butter that thickens the liquid into a creamy base.
Milk
Adds creaminess, mild sweetness and body to the soup.

The step that matters

Add the milk and water gradually while stirring constantly. Adding liquid slowly to the roux and stirring keeps the flour dispersed, so the soup thickens smoothly instead of forming lumps.

Swap the potato

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

  1. Potatothe original
  2. Arrowrootfits about as well
  3. Leekfits less well
  4. Shallotfits less well

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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