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
Chop the calves' feet into eight pieces and wash them well in cold water.
Place the pieces in a stewpan, cover with cold water, and bring to a boil to blanch them.
Pour off the water and wash again in cold water.
Make the stock
Wash the stewpan, return the pieces to it, add 2 quarts of water, and bring to a boil, skimming occasionally.
Add ½ teaspoon salt and all other ingredients except the lemon, egg whites, and vinegars.
Wash, scrape, and peel the vegetables before use.
Let the mixture boil gently for 5 hours.
Strain through a fine sieve into a basin and let cool completely.
Skim off the fat and wipe the surface with a cloth dipped in hot water.
Clarify and finish
Return the stock to a clean stewpan, add the thinly peeled lemon rind and juice, the whipped egg whites, and the shells.
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.
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Shallot + leektop 1% of all pairsSmell alikestrongCooked together64 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Thyme + parsleytop 1% of all pairsSmell alikestrongCooked together9,057 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Garlic + oniontop 1% of all pairsSmell alikestrongCooked together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
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Shallot + parsleytop 1% of all pairsSmell alikestrongCooked together3,737 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Shallot + thymetop 1% of all pairsSmell alikestrongCooked 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):
- Winter savoryfits better
- Marjoramfits better
- Capersfits better
- 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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