Why it works: Onion and garlic match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. The science ↓
Curried Gravy
Ingredients
Directions
Prepare the base
Slice the onions, garlic, and eschalots.
Fry them gently in butter until they are a fine yellow-brown.
Lift them into a sieve to drain.
Make the gravy
Put them into a clean saucepan with the gravy and cocoa-nut (and apples if using).
Simmer softly for 30 to 45 minutes until the onions are tender enough to press through a strainer.
Strain the gravy and bring it back to a boil.
Add curry powder, flour, and salt, mixing to a smooth batter with cream.
Simmer for 15 to 20 minutes until ready to 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 their aromas overlap, and how often cooks already put them together.
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Onion + garlictop 1% of all pairsSmell alikestrongCooked together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Cocoa + appletop 12% of all pairsSmell alikemoderateCooked together52 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + appletop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onions
- Break down during simmering to give the gravy body and sweetness.
- Butter
- Fat that carries the frying and gives the onions a rich, browned flavour.
- Gravy
- Liquid base that the onions and spices simmer in.
- Curry powder
- Supplies the spice blend and aroma that define the dish.
- Flour
- Thickens the gravy so it becomes a smooth, coating sauce.
- Cream
- Adds richness and softens the spice, rounding out the sauce.
The step that matters
Simmer the onions until tender enough to press through. Onions must cook long enough to soften fully so they dissolve into the gravy when strained. Undercooked onions stay fibrous and leave a grainy, uneven texture.
Swap the garlic
The recipe marks garlic as optional. How well each one fits the dish's main ingredients (onion, butter, cocoa, apple, flour, cream):
- Cinnamonfits better
- Nutmegfits better
- Turmericfits about as well
- Garlicthe original
Fit is the average pairing score against onion, butter, cocoa, apple, flour, cream. 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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