Why it works: Pepper and mustard are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 15,430 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Liver Terrapin
Ingredients
Directions
Prepare the liver
Parboil the liver and reserve the cooking liquid for gravy.
Cut the liver into small pieces and return it to the saucepan with the reserved liquid.
Make the gravy
Season with coarse sea salt and black pepper.
Add butter, dry mustard mixed with browned flour, and stir well.
Cut the hard-boiled eggs into fine pieces and add them just before serving.
Add sherry wine to taste.
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 + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + flourtop 13% of all pairsSmell alikemoderateCooked together5,066 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + winetop 13% of all pairsSmell alikemoderateCooked together8,645 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
-
Butter + sherrytop 14% of all pairsSmell alikemoderateCooked together3,505 recipes
Shared aroma: ethyl octanoate (fruity, wine).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Liver
- Forms the main body of the dish, giving it its rich, meaty flavour.
- Browned flour
- Thickens the cooking liquid into a gravy as it heats.
- Hard-boiled eggs
- Add soft, finely cut texture that blends into the gravy.
- Butter
- Adds fat and richness to the gravy and carries flavour.
The step that matters
Adding the browned flour and dry mustard. Flour must be fully dispersed in the hot liquid and stirred well, or it will clump and leave floury lumps instead of a smooth, evenly thickened gravy.
Swap the mustard
How well each one fits the dish's main ingredients (liver, pepper, butter, flour, egg, sherry, wine):
- Shallotfits better
- Capsicumfits better
- Chivefits better
- Mustardthe original
Fit is the average pairing score against liver, pepper, butter, flour, egg, sherry, wine. 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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