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Dessert

Apple Calfs-foot Jelly

A jelly made from apples, stock, sugar, lemon, apple juice, and egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Apple and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 7,551 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Apple Calfs-foot Jelly

Ingredients

Directions

Make the apple juice

  1. Boil the sliced apples in water for 1 hour.

  2. Strain the mixture through a jelly bag.

  3. Pour the juice over another pound of sliced apples and simmer for 30 minutes.

  4. Strain again through the jelly bag and let cool.

Make the jelly

  1. In a pot, combine the stock, sugar, lemon rind, lemon juice, apple juice, egg whites, and crushed shells.

  2. Simmer for 15 minutes and strain until clear.

  3. Pour into molds and let cool.

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. Apple + lemontop 14% of all pairs
    Smell alikemoderate
    Cooked together7,551 recipes

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

  2. Apple + sugartop 18% of all pairs
    Smell alikelow
    Cooked together16,478 recipes

    Shared aroma: beta-damascenone (apple, rose).

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

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

  4. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  5. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

Apple and sugar barely smell alike, yet cooks put them together in 16,478 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

Apples
Provide the main apple flavour and pectin that helps the juice set into a jelly.
Sugar
Adds sweetness and helps give the set jelly its body and clarity.
Egg whites
Bind to small particles in the liquid so they can be strained out, leaving it clear.
Lemon juice
Adds acidity that brightens the apple flavour and supports the set.
Stock
Adds savoury body to the liquid, forming the base of the jelly.

The step that matters

Simmer for 15 minutes and strain until clear. Egg whites must be heated gently so they coagulate and trap cloudy particles. Boiling too hard or straining too early leaves the jelly murky.

Swap the apple

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

  1. Orangefits better
  2. Vanillafits better
  3. Limefits better
  4. Applethe original

Fit is the average pairing score against sugar, lemon, egg. 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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