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Dessert

Jelly Stock

A gelatinous stock made from calf's feet, sugar, lemon, and egg whites, used as a base for jelly.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Sugar and lemon are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Jelly Stock

Ingredients

Directions

Make the stock

  1. Boil the calf's feet in 2 quarts of water for 1 hour, then simmer gently for 5 hours.

  2. Skim off the fat as it rises and strain the liquid when the feet are soft.

  3. Let the liquid cool until it hardens, then remove any sediments.

Clarify and set

  1. Melt the sugar in a pan with ½ pint of water, lemon rind, lemon juice, and the egg whites and shells.

  2. Add the jelly stock and whisk until it boils.

  3. Strain the mixture through a flannel jelly-bag.

  4. Return any thick liquid to the jelly-bag until clear.

  5. Pour the clear jelly into a mold and refrigerate until set.

  6. To unmold, dip the mold lightly in warm water.

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

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

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

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

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

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

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

What each ingredient does

Calf's feet
Release gelatin as they simmer, giving the jelly its body and setting power.
Sugar
Sweetens the jelly and balances the sharpness of the lemon juice.
Lemon juice
Adds acidity and bright flavour that cuts the richness of the stock.
Eggs
Whites and shells collect cloudy particles as they heat, clarifying the jelly to a clear finish.

The step that matters

Whisk until it boils, then strain through the jelly-bag. Egg whites must coagulate and trap impurities as the mixture heats; if it is stirred too hard or the bag is rushed, the jelly stays cloudy and loses its clarity.

Swap the lemon

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

  1. Vanillafits better
  2. Raisinfits about as well
  3. Lemonthe original
  4. Datesfits less well

Fit is the average pairing score against sugar, 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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