Why it works: Beef and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and 17,091 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Ingredients
Contains: milk (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Combine the grated bacon, diced beef suet, butter, lemon juice, bay leaves, cloves, diced carrots, diced onions, and water in a stewpan.
Simmer gently, stirring often, until the fat is melted and the water has evaporated.
Add more liquid than needed for the dish to be cooked in the blanc.
Boil softly until all ingredients have released their flavors.
Skim off any impurities.
Season with salt if needed.
Strain for use.
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 aroma chemistry they share, and how many recipes mention both.
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Beef + oniontop 3% of all pairsAroma overlapmoderateMentioned together17,091 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Clove + carrottop 3% of all pairsAroma overlapstrongMentioned together4,916 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Carrot + oniontop 4% of all pairsAroma overlapstrongMentioned together21,599 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + carrottop 5% of all pairsAroma overlapstrongMentioned together6,604 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Lemon + carrottop 5% of all pairsAroma overlapstrongMentioned together3,350 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
- Bacon
- Melts into the liquid to add rich, savoury fat and flavour.
- Beef suet
- Adds fat that melts down to carry flavour and give body to the stock.
- Butter
- Adds fat and a smooth, rich mouthfeel to the stock.
- Onions
- Release sweetness and aromatic flavour as they cook slowly in the liquid.
- Carrots
- Contribute gentle sweetness and aroma to the stock.
The step that matters
Simmer gently rather than boil hard. Fat and solids need slow, gentle heat to melt and release flavour without breaking into a cloudy, greasy liquid. Vigorous boiling emulsifies fat into the stock and makes it harder to skim and clarify.
Flavor stand-ins for the lemon
How well each one fits the dish's main ingredients (beef, butter, clove, carrot, onion):
- Orangebetter flavor fit
- Grapebetter flavor fit
- Applebetter flavor fit
- Lemonthe original
Fit is the average pairing score against beef, butter, clove, carrot, onion. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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