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 ↓
Drawn Butter or Egg Sauce
Ingredients
Directions
Make the sauce
Put the water in a saucepan and bring it to a boil.
In a bowl, rub the butter into the flour until well combined.
Stir the butter and flour mixture into the boiling water.
Let it boil for a few minutes, then season with salt and parsley if desired.
Finish and serve
For egg sauce, chop the hard boiled eggs and add them to the sauce 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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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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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).
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 with fat and gives it a smooth, rich texture.
- Flour
- Thickens the water and butter into a smooth sauce as it boils.
- Hard boiled eggs
- Add body and a mild, savoury flavour to the finished sauce.
The step that matters
Rub the butter into the flour until well combined. If the butter and flour are not fully blended, lumps can form when the mixture meets the boiling water. Thorough mixing lets the flour starch disperse evenly so the sauce thickens smoothly.
Swap the parsley
How well each one fits the dish's main ingredients (butter, flour, egg):
- Capersfits better
- Nutmegfits better
- Jalapenofits about as well
- Parsleythe original
Fit is the average pairing score against butter, flour, egg. 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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