Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Ox Liver
Ingredients
Directions
Prepare
Cut the liver into slices ¼ inch thick.
Sprinkle salt and pepper on both sides.
Cook and serve
Place the slices on a grill over a sharp fire.
Turn the liver only once and serve slightly underdone.
Mix butter and chopped parsley together and spread between the slices.
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 + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Liver + parsleytop 17% of all pairsSmell alikelowCooked together1,095 recipes
Shared aroma: alpha-pinene (pine, turpentine).
-
Liver + buttertop 19% of all pairsSmell alikemoderateCooked together2,065 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Liver + peppertop 21% of all pairsSmell alikemoderateCooked together2,375 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Liver
- Is the main protein, cooked quickly so it browns outside while staying tender inside.
- Butter
- Adds richness and moisture, melting into the slices to carry flavor and keep them juicy.
The step that matters
Turn the liver only once. Liver is lean and delicate. Repeated turning cools the surface and dries the meat, while one turn lets a browned crust form and keeps the centre tender and slightly pink.
Swap the parsley
How well each one fits the dish's main ingredients (liver, pepper, butter):
- Sagefits about as well
- Parsleythe original
- Thymefits about as well
- Marjoramfits less well
Fit is the average pairing score against liver, pepper, butter. 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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