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Asparagus or Celery Soup

A creamy soup made from asparagus or celery, milk, butter, flour, and seasoned with salt and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and butter 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 ↓

Asparagus or Celery Soup

Ingredients

Directions

Prepare the asparagus

  1. Cook the asparagus thoroughly and press through a sieve.

Make the soup

  1. In a saucepan, mix the flour and butter, and let it boil for 5 minutes.

  2. Add the milk and then the asparagus, stirring well but do not boil.

  3. Season with salt and pepper to taste.

  4. If the soup is not perfectly white, strain it again 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.

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

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

  2. Asparagus + peppertop 10% of all pairs
    Smell alikemoderate
    Cooked together1,968 recipes

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

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Asparagus + flourtop 12% of all pairs
    Smell alikemoderate
    Cooked together936 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Milk + flourtop 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

Asparagus
Provides the main flavour and the body of the soup once pressed through a sieve.
Butter
Enriches the soup and carries flavour, and with flour forms the base that thickens it.
Flour
Thickens the soup by forming a roux with the butter.
Milk
Makes up the liquid of the soup and gives it a creamy, smooth texture.

The step that matters

Do not let the soup boil after adding the milk and asparagus. Milk can curdle or scorch when it boils, and boiling can break up the smooth texture the flour and butter base was meant to give, so the soup should be stirred and kept just below boiling.

Swap the asparagus

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

  1. Potatofits better
  2. Capsicumfits better
  3. Chivefits about as well
  4. Asparagusthe original

Fit is the average pairing score against milk, butter, flour, 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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