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 ↓
Indian Hash
Ingredients
Directions
Make the hash
Combine the meat and stock in a stewpan.
Season with salt, pepper, and mace.
Add butter and lemon.
Cover the stewpan.
Simmer for 10 minutes without boiling.
Finish and serve
Grate the yolks of the hard-boiled eggs into a small bowl.
Mix the grated yolks with mustard and some gravy until smooth.
Pour the mixture back into the stewpan.
Remove the lemon.
Simmer for 5 minutes.
Serve hot.
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).
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Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lemon + mustardtop 11% of all pairsSmell alikestrongCooked together3,816 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Pepper + macetop 16% of all pairsSmell alikelowCooked together12,257 recipes
Shared aroma: myristicin (spice, warm).
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Mutton + peppertop 16% of all pairsSmell alikelowCooked together5,442 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Pepper and mace barely smell alike, yet cooks put them together in 12,257 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
- Mutton or beef
- Forms the body of the hash, providing the savoury meat base.
- Hard-boiled egg yolks
- Thicken the gravy as they emulsify into a smooth, creamy texture.
- Butter
- Adds richness and fat, giving the gravy a rounder mouthfeel.
- Made mustard
- Adds sharp pungency that cuts the richness of the meat and eggs.
The step that matters
Simmering without boiling. Boiling toughens meat proteins and can make the egg-yolk mixture grainy or split, so the stewpan should stay at a gentle simmer.
Swap the mace
How well each one fits the dish's main ingredients (mutton, pepper, butter, lemon, egg, mustard):
- Parsleyfits better
- Tarragonfits better
- Capersfits better
- Macethe original
Fit is the average pairing score against mutton, pepper, butter, lemon, egg, mustard. 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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