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Grapefruit Aspic

From an old cookbook · modernised transcription
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Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Grapefruit Aspic

Ingredients

Directions

  1. Dissolve the gelatine in cold water.

  2. Pour the dissolved gelatine over 1 pint of boiling water.

  3. Season with sugar, salt, and pepper to taste.

  4. Strain the juice of 1 lemon into the mixture.

  5. Pour the mixture into a wetted mold.

  6. Chill until set and serve with mayonnaise on lettuce leaves.

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. Pepper + lemontop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Pepper + lettucetop 9% of all pairs
    Smell alikemoderate
    Cooked together4,037 recipes

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

  3. Lemon + lettucetop 9% of all pairs
    Smell alikestrong
    Cooked together1,559 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Sugar + lettucetop 29% of all pairs
    Smell alikemoderate
    Cooked together1,486 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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 lettuce

How well each one fits the dish's main ingredients (sugar, pepper, lemon):

  1. Capsicumfits better
  2. Arrowrootfits better
  3. Spinachfits better
  4. Lettucethe original

Fit is the average pairing score against sugar, pepper, lemon. Candidates are from the same food group and used in at least 100 recipes.

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