Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Terrapin Salad
Ingredients
Directions
Prepare the terrapins
Boil the terrapins until the shells come off easily and the nails pull out.
Cut the terrapins into small pieces and carefully remove the sand-bag and gall.
Make the salad
Remove the yolks from the hard-boiled eggs and rub them into a powder with the butter until creamy and light.
Add the flour to the egg and butter mixture.
Combine this mixture with the terrapin meat in a saucepan.
Season with cayenne pepper and salt, and let it boil for one to two minutes.
Just before removing from heat, add wine to taste and a little mace if desired.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Pepper + macetop 16% of all pairsSmell alikelowCooked together12,257 recipes
Shared aroma: myristicin (spice, warm).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Terrapins
- Provide the main meat, forming the body of the salad.
- Hard-boiled eggs
- Their yolks blend with butter to give the salad a rich, creamy texture.
- Sweet butter
- Adds fat and richness, creaming with the yolks to a smooth, light base.
- Flour
- Lightly thickens the butter and yolk mixture so it holds together.
The step that matters
Letting the mixture boil briefly after seasoning. Flour thickens only when heated, so the mixture must simmer for a minute or two to set smoothly; boiling too long can make the butter separate and the texture grainy.
Swap the mace
The recipe marks mace as optional. How well each one fits the dish's main ingredients (egg, butter, flour, pepper, wine):
- Parsleyfits better
- Tarragonfits better
- Nutmegfits better
- Macethe original
Fit is the average pairing score against egg, butter, flour, pepper, 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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