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 ↓
Dutch Sauce
Ingredients
Directions
In a small saucepan, combine the butter, vinegar, water, and egg yolks.
Stir over low heat until the sauce thickens, about 10 minutes.
Do not let it boil, or it will curdle.
Remove from heat and stir in the lemon juice.
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.
Photo for illustrative purposes only · Contact us to use it
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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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Lemon + flourtop 17% of all pairsSmell alikemoderateCooked together30,404 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
- Adds richness and fat, giving the sauce a smooth, silky body.
- Egg yolks
- Their proteins set as they heat, thickening the sauce and holding it together.
- Vinegar
- Adds acidity that sharpens the flavour and balances the richness of the butter.
- Lemon juice
- Adds bright acidity and aroma, added off heat to keep its flavour fresh.
The step that matters
Keep the heat low and do not boil. Egg yolks thicken through gentle heat, but high heat makes their proteins tighten too far and squeeze out liquid, so the sauce curdles and turns grainy.
Swap the lemon
How well each one fits the dish's main ingredients (butter, vinegar, egg, flour):
- Raisinfits better
- Figfits about as well
- Vanillafits about as well
- Lemonthe original
Fit is the average pairing score against butter, vinegar, egg, 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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