Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
To Hash Beef
Ingredients
Directions
Soften the onion
Combine the onion, water, pepper, and salt in a small saucepan.
Boil until the onion is soft.
Add the meat
Add the gravy and minced meat, and do not let it boil.
Mix in the vinegar before serving.
Serve
Serve the mince in a hot dish with sippets of bread.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Meat + breadtop 14% of all pairsSmell alikemoderateCooked together2,924 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 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
- Onion or shallot
- Softens as it cooks, adding sweetness and a mild aromatic base to the dish.
- Gravy from cooked meat
- Adds moisture and savory meaty flavor that coats the minced meat.
- Minced meat
- Forms the main body of the hash, providing its texture and savory flavor.
- Vinegar
- Adds a bright acidity that balances the richness of the meat and gravy.
The step that matters
Do not let the meat boil after adding it. Minced meat held at a boil becomes firm and tough as its proteins contract and squeeze out moisture. Keeping it just hot preserves a tender, juicy texture.
Swap the onion
How well each one fits the dish's main ingredients (pepper, meat, vinegar, bread):
- Capsicumfits better
- Mustardfits better
- Tomatofits better
- Onionthe original
Fit is the average pairing score against pepper, meat, vinegar, bread. 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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