Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Fruit Sauce
Ingredients
Directions
Mix sugar and flour together in a saucepan.
Add boiling water and cook until thick.
Stir in butter and fruit juice.
Add vinegar if desired.
Omit ginger if you prefer.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + gingertop 15% of all pairsSmell alikemoderateCooked together8,564 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + gingertop 17% of all pairsSmell alikelowCooked together14,054 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Flour and butter 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
- Sugar
- Sweetens the sauce and adds body as the mixture thickens.
- Flour
- Thickens the sauce as its starch swells in hot liquid.
- Butter
- Adds richness and a smooth mouthfeel to the finished sauce.
- Fruit juice
- Supplies the fruit flavour and much of the liquid in the sauce.
The step that matters
Add boiling water and cook until thick.. Flour thickens only when its starch granules swell and gelatinize in hot liquid. Stirring while it cooks keeps the sauce smooth and cooks out the raw flour taste. Stopping too early leaves the sauce thin and floury.
Swap the ginger
The recipe marks ginger as optional. How well each one fits the dish's main ingredients (sugar, flour, butter):
- Cinnamonfits better
- Jalapenofits better
- Nutmegfits better
- Gingerthe original
Fit is the average pairing score against sugar, flour, butter. 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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