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Potato Soup

A creamy potato soup made with stock, milk, butter, and sago.

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

Prepare the vegetables

  1. Slice the potatoes, onion, and celery.

Make the soup

  1. Heat the butter in a saucepan, add the vegetables, and cook until the butter is absorbed, stirring frequently to prevent browning.

  2. Add the stock and simmer until the vegetables are tender, about 1 hour.

  3. Rub the mixture through a fine sieve, return to the saucepan, and add the milk.

  4. Bring to a boil, sprinkle in the sago, and cook until transparent.

  5. Season with salt and pepper to taste, then serve.

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. Celery + peppertop 5% of all pairs
    Smell alikestrong
    Cooked together16,012 recipes

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

  3. Potato + celerytop 7% of all pairs
    Smell alikemoderate
    Cooked together2,047 recipes

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

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

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

  5. Onion + celerytop 7% of all pairs
    Smell alikemoderate
    Cooked together18,518 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Potatoes
Break down during simmering to give the soup body and a thick, smooth texture.
Butter
Fat that softens the vegetables gently and carries flavour before the liquid is added.
Milk
Adds richness and a creamy, mellow texture to the finished soup.
Sago or tapioca
Starch that thickens the soup as it cooks and turns it transparent when heated.

The step that matters

Stirring the vegetables in the butter. Cooking over heat without enough stirring can scorch the starch-rich vegetables and brown the butter, giving a bitter, dark taste. Stirring keeps the heat even so they soften in fat without colouring.

Swap the celery

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

  1. Garlicfits better
  2. Parsleyfits better
  3. Thymefits better
  4. Celerythe original

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