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Rhubarb Leaf Soup

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Rhubarb and flour match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 670 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Rhubarb Leaf Soup

Ingredients

Directions

  1. Cut rhubarb leaves finely with scissors.

  2. Steam leaves with butter in their own juice for 15 minutes.

  3. Gradually add hot water to reach desired consistency.

  4. Thicken with flour and bring to a boil.

  5. Stir in cream just before boiling.

  6. Serve each bowl with a well-beaten egg and salt to taste.

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. Rhubarb + flourtop 7% of all pairs
    Smell alikestrong
    Cooked together670 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

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

Swap the rhubarb

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

  1. Nutmegfits better
  2. Capersfits better
  3. Jalapenofits about as well
  4. Rhubarbthe original

Fit is the average pairing score against butter, flour, cream, egg. Candidates are from the same food group and used in at least 100 recipes.

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