Why it works: Vinegar and onion are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 18,226 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Liver Stew
Ingredients
Directions
Prepare the liver
Soak the liver overnight in vinegar with sliced onion and herbs to whiten and firm it.
Trim small bits of the liver, flour them, and lightly fry with sliced onion.
Stew
Add 3 cups of water, peppercorns, and a small bunch of herbs to the pan.
Season with salt and add lemon juice or pickle.
Stew for 1 hour.
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.
-
Vinegar + oniontop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Liver + oniontop 15% of all pairsSmell alikelowCooked together1,420 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Onion + lemontop 19% of all pairsSmell alikemoderateCooked together15,646 recipes
Shared aroma: decanal (soap, orange peel).
-
Vinegar + lemontop 20% of all pairsSmell alikemoderateCooked together7,334 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Liver + vinegartop 20% of all pairsSmell alikelowCooked together345 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
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, becoming firmer and paler after soaking in vinegar.
- Vinegar
- Soaking in vinegar whitens and firms the liver before cooking.
- Lemon juice or pickle
- Adds acidity that brightens the finished stew.
The step that matters
Soak the liver overnight in vinegar. The acid in the vinegar firms and whitens the liver's surface and mellows its strong flavour. A shorter soak leaves the liver softer and more strongly flavoured.
Swap the lemon
How well each one fits the dish's main ingredients (liver, vinegar, onion):
- Applefits better
- Grapefits better
- Plumfits better
- Lemonthe original
Fit is the average pairing score against liver, vinegar, onion. 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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