Why it works: Carrot and onion are a kitchen classic. They rank in the top 6% of all ingredient pairs, and cooks put them together in 21,601 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Purine of Carrots
Ingredients
Directions
Make the puree
Combine sliced carrots, butter, and quartered onions in a stewpan.
Cook until the vegetables are soft.
Add stock and sugar, then stew gently for 3 hours.
Pass the mixture through a tamis.
If the puree is too thin, reduce it on the fire until thickened.
Finish
Stir in velouté and skim to clear.
Ensure the puree is thick enough to mask the entree.
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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Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Carrot + buttertop 24% of all pairsSmell alikemoderateCooked together10,083 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Carrot + sugartop 28% of all pairsSmell alikelowCooked together4,211 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
- Carrots
- Form the bulk of the puree and give it its flavour and body.
- Butter
- Adds richness and carries flavour while the vegetables soften.
- Onions
- Add savoury depth and sweetness as they cook down slowly.
- Velouté
- Thickens the puree and gives it a smooth, coating consistency.
The step that matters
Reducing a thin puree. Reducing on the fire evaporates excess water, so the puree thickens without extra flour. Reducing too far, or too gently, changes the texture and can scorch the bottom of the pan.
Swap the carrot
How well each one fits the dish's main ingredients (butter, onion, sugar):
- Potatofits better
- Leekfits better
- Chivefits better
- Carrotthe original
Fit is the average pairing score against butter, onion, sugar. 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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