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Aspic Jelly

Aspic jelly is a gelatinous meat stock made from calves' feet, vegetables, herbs, and vinegar, set with egg whites.

From an old cookbook · modernised transcription
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Why it works: Shallot and leek share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and cooks put them together in 64 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓

Aspic Jelly

Ingredients

Directions

Prepare the calves' feet

  1. Chop the calves' feet into eight pieces and wash them well in cold water.

  2. Place the pieces in a stewpan, cover with cold water, and bring to a boil to blanch them.

  3. Pour off the water and wash again in cold water.

Make the stock

  1. Wash the stewpan, return the pieces to it, add 2 quarts of water, and bring to a boil, skimming occasionally.

  2. Add ½ teaspoon salt and all other ingredients except the lemon, egg whites, and vinegars.

  3. Wash, scrape, and peel the vegetables before use.

  4. Let the mixture boil gently for 5 hours.

  5. Strain through a fine sieve into a basin and let cool completely.

  6. Skim off the fat and wipe the surface with a cloth dipped in hot water.

Clarify and finish

  1. Return the stock to a clean stewpan, add the thinly peeled lemon rind and juice, the whipped egg whites, and the shells.

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. Shallot + leektop 1% of all pairs
    Smell alikestrong
    Cooked together64 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  2. Thyme + parsleytop 1% of all pairs
    Smell alikestrong
    Cooked together9,057 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  3. Garlic + oniontop 1% of all pairs
    Smell alikestrong
    Cooked together29,058 recipes

    Shared aroma: furaneol (caramel, strawberry).

  4. Shallot + parsleytop 1% of all pairs
    Smell alikestrong
    Cooked together3,737 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  5. Shallot + thymetop 1% of all pairs
    Smell alikestrong
    Cooked together1,476 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Calves' feet
Their collagen breaks down during long simmering into gelatin, which lets the stock set as aspic.
Egg whites
As they heat, their proteins set and trap suspended particles, which clears the stock.
Lemon
Its juice adds acidity and its rind adds bright aroma to the stock.
Onion
Cooked slowly in the stock, it adds savoury depth and sweetness to the flavour base.
Carrots
They add gentle sweetness and body to the flavour of the stock.

The step that matters

Clarifying with egg whites and shells. Egg white proteins coagulate as the stock heats and gather cloudy particles into a raft that can be strained out, leaving a clear aspic. Adding them to stock that is still too warm or unevenly mixed can leave the stock cloudy.

Swap the mace

How well each one fits the dish's main ingredients (clove, garlic, shallot, thyme, parsley, onion, leek):

  1. Winter savoryfits better
  2. Marjoramfits better
  3. Capersfits better
  4. Macethe original

Fit is the average pairing score against clove, garlic, shallot, thyme, parsley, onion, leek. 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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