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 ↓
Calf's Head Hash
Ingredients
Directions
Prepare the head
Boil the calf's head.
Cut the meat into small square pieces.
Break up the bones and add them to the veal stock.
Stew over low heat until reduced to a jelly when cool.
Remove the fat from the jelly and place it in a stew pan.
Make the hash
Add Cayenne pepper, salt, mushroom ketchup, Chili vinegar, and Madeira or sherry.
Simmer for 10 minutes.
Add the head, forcemeat quenelles, egg yolks, and lemon rind.
Stew for another 10 minutes.
Serve
Serve hot with sauce, garnished with pickled gherkins and fried sippets.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Mushroom + sherrytop 5% of all pairsSmell alikemoderateCooked together1,176 recipes
Shared aroma: 2-methoxy-4-methylphenol (smoky, clove).
-
Pepper + mushroomtop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Vinegar + sherrytop 11% of all pairsSmell alikemoderateCooked together660 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
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Veal + mushroomtop 14% of all pairsSmell alikemoderateCooked together2,446 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Calf's head
- Provides the meat and gelatinous body that give the hash its substance and texture.
- Veal stock
- Its gelatin sets into a jelly when reduced and cooled, giving the hash body and moisture.
- Madeira or sherry
- Adds acidity and wine flavour that balances the rich meat and stock.
- Hard-boiled egg yolks
- Their fat and richness add smoothness and body to the sauce.
- Mushroom ketchup
- Contributes savoury, umami depth to the stock.
The step that matters
Stew the stock down to a jelly. The stock must reduce until it sets firm when cool, because that gelatin is what binds the hash. If it is under-reduced, the hash will be thin and runny; slow, low heat avoids scorching.
“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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