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 ↓
Brown Stew of Liver
Ingredients
Directions
Prepare the liver
Soak the sliced liver in cold water with salt for 30 minutes.
Wipe the liver and cut it into 1-inch square pieces.
Make the gravy
Fry the sliced onion in dripping until browned, then strain it out.
Add browned flour to the fat and stir to make a smooth roux.
Gradually add 1 cup of boiling water to the roux, stirring continuously.
Transfer the mixture to a saucepan, add the liver and another cup of hot water.
Finish and serve
Cover and stew slowly for 1 hour or until the liver is tender.
Season with pepper, salt, parsley, and tomato ketchup, then serve in a deep dish.
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).
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Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Parsley + tomatotop 8% of all pairsSmell alikemoderateCooked together5,398 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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 stew and becomes tender during slow simmering.
- Browned flour
- Thickens the liquid into a smooth gravy when mixed with the fat and water.
- Dripping
- Carries flavour and browns the onion, adding richness to the gravy.
- Onion
- Adds sweetness and savoury depth as it browns in the dripping.
- Tomato ketchup
- Adds sweetness and acidity to round out the gravy's flavour.
The step that matters
Gradually add the boiling water to the roux. Adding liquid slowly while stirring lets the flour starch disperse evenly before it thickens, which prevents lumps and gives a smooth gravy.
Swap the tomato
How well each one fits the dish's main ingredients (liver, onion, flour, pepper, parsley, ketchup):
- Carrotfits better
- Shallotfits better
- Turnipfits better
- Tomatothe original
Fit is the average pairing score against liver, onion, flour, pepper, parsley, ketchup. 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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