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 ↓
Allemande Sauce
Ingredients
Directions
Melt the butter in a pan.
Stir in the flour.
Add the white stock or broth and stir constantly until it boils.
Remove from heat and stir in the beaten egg yolks carefully to avoid cooking them.
Season with salt and pepper.
Return to heat, stirring constantly, and bring to a boil, then remove immediately to prevent curdling.
Add the egg-sized piece of butter and stir until melted.
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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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).
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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
- Butter
- Enriches the roux and adds richness and flavour to the sauce.
- Flour
- Thickens the stock into a smooth sauce when cooked with the butter.
- White stock or broth
- Forms the liquid base of the sauce and provides savoury flavour.
- Egg yolks
- Add richness and thicken the sauce gently as it warms.
The step that matters
Adding the egg yolks off the heat. Egg yolks begin to set around 65°C and can scramble if added to a boiling sauce. Stirring them in off the heat, then reheating gently and stirring constantly, keeps the sauce smooth rather than curdled.
“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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