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 ↓
Salsifis a LA Sauce Blanche
Ingredients
Directions
Make the sauce
Melt the butter in a stewpan.
Stir in the flour until well combined.
Moisten the mixture with water or white stock.
Add pepper and salt, then bring to a boil.
Cook the salsifis
Add the partly boiled salsifis, cover, and simmer gently for one hour.
Once done, dish the salsifis and mix the egg yolk with the vinegar.
Pour the egg mixture over the salsifis before serving.
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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Pepper + vinegartop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Butter
- Enriches the sauce and carries flavour, giving it a rich, smooth mouthfeel.
- Flour
- Thickens the liquid into a white sauce as its starch swells when heated.
- Egg yolk
- Thickens and enriches the sauce when stirred in, adding richness and a silky texture.
- French vinegar
- Adds acidity that brightens the rich sauce and balances its creaminess.
The step that matters
Adding the egg yolk and vinegar. Egg yolk thickens when heated gently, but if it is added to very hot liquid without care it can scramble. Mixing it with vinegar first and pouring it over the dish just before serving helps keep the sauce smooth.
“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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