Why it works: Butter and flour 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 ↓
To Make the Gravy for Fried Calf's Head
Ingredients
Directions
In a saucepan, combine the water from boiling the calf's head with butter.
Whisk in the flour until smooth.
Add the wine and stir well.
Season with salt and cayenne pepper to taste.
Simmer until thickened, then serve over the fried calf's head.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + winetop 13% of all pairsSmell alikemoderateCooked together8,645 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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Wine + peppertop 18% of all pairsSmell alikemoderateCooked together8,066 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 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
- Flour
- Thickens the liquid into a smooth gravy as it cooks.
- Butter
- Adds richness and fat to the gravy, giving it a smoother mouthfeel.
- Wine
- Adds acidity and flavour, balancing the richness of the butter.
The step that matters
Whisk the flour in until smooth. Adding flour to liquid without whisking can leave lumps, because starch clumps when it hits hot liquid unevenly. Whisking it in smoothly before adding the wine keeps the gravy even in texture.
“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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