Why it works: Onion and sage are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 3,628 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Onion Gravy with Bage
Ingredients
Directions
In a saucepan, combine the chopped onions and sage leaves with the butter.
Cover the saucepan and simmer slowly until the onions are nearly cooked but not browned.
Add the veal gravy and reduce it to one-third.
Skim off the grease and strain the gravy through a towel.
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 + sagetop 12% of all pairsSmell alikemoderateCooked together3,628 recipes
Shared aroma: coumarin (sweet, hay).
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Sage + vealtop 14% of all pairsSmell alikelowCooked together670 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Sage + buttertop 17% of all pairsSmell alikemoderateCooked together3,312 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Onion + vealtop 17% of all pairsSmell alikelowCooked together6,841 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
- Onions
- Soften and sweeten as they cook slowly, adding body and flavour to the gravy.
- Butter
- Carries the aromatics and adds richness and fat for a smooth, silky finish.
- Veal gravy
- Forms the liquid base, which reduces to a concentrated, thicker gravy.
- Green sage leaves
- Adds a fresh, earthy aroma that stands out against the sweet onions.
The step that matters
Simmer the onions slowly without browning. Browning turns the onions bitter and dark, while gentle cooking softens them and draws out sweetness, giving a mellow, clean-tasting gravy.
Swap the onion
How well each one fits the dish's main ingredients (sage, butter, veal):
- Shallotfits about as well
- Leekfits about as well
- Carrotfits about as well
- Onionthe original
Fit is the average pairing score against sage, butter, veal. 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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