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 ↓
Eschalot Sauce for Boiled Mutton
Ingredients
Directions
In a small saucepan, combine minced eschalots and the liquor from the boiled mutton.
Bring to a boil and let simmer for 5 minutes.
Add vinegar, pepper, salt, and the butter‑flour mixture, then shake together until it boils.
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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Walnut + flourtop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + walnuttop 13% of all pairsSmell alikemoderateCooked together3,039 recipes
Shared aroma: 2-nonenal (fatty, green).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Walnut + buttertop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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
- Eschalots
- Provide the main aromatic flavour base of the sauce.
- Liquor from boiled mutton
- Supplies the liquid and savoury meaty flavour that forms the sauce.
- Butter rolled in flour
- Flour and butter thicken the liquid and add richness as it heats.
- Vinegar
- Adds acidity that brightens and sharpens the flavour of the sauce.
The step that matters
Add the butter-flour mixture and bring to a boil. Flour needs to reach a boil and be shaken or stirred in fully so starch can swell and thicken the sauce evenly without lumps.
Swap the walnut
How well each one fits the dish's main ingredients (mutton, vinegar, pepper, butter, flour):
- Almondfits about as well
- Beansfits about as well
- Walnutthe original
- Chestnutfits about as well
Fit is the average pairing score against mutton, vinegar, pepper, butter, flour. 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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