Why it works: Butter and fish are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 4,488 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Hollandaise, or Dutch Sauce
Ingredients
Directions
Make the sauce
Heat the flour and butter in a saucepan over medium heat.
Add the fish stock, salt, lemon juice or vinegar, and sugar.
Bring the mixture to a boil.
Boil for about 5 minutes, then remove from heat.
Finish
Thicken the sauce by whisking in the egg yolks.
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 + fishtop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Fish + lemontop 15% of all pairsSmell alikelowCooked together1,889 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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
- Flour
- Thickens the liquid when cooked with butter into a starch base.
- Butter
- Adds richness and smooth fat that carries flavour.
- Fish stock
- Provides the liquid base and savoury flavour of the sauce.
- Egg yolks
- Thicken and enrich the sauce as their proteins set gently with heat.
- Lemon juice or vinegar
- Adds acidity that brightens and balances the richness.
- Sugar
- Adds a small amount of sweetness to balance the acidity.
The step that matters
Whisking in the egg yolks. Egg yolk proteins set at low temperatures and can scramble if the sauce is too hot. Removing the pan from heat before whisking in the yolks, and whisking constantly, keeps the sauce smooth and thickened rather than lumpy.
Swap the lemon
How well each one fits the dish's main ingredients (flour, butter, fish, sugar, egg):
- Raisinfits better
- Lemonthe original
- Vanillafits about as well
- Coconutfits about as well
Fit is the average pairing score against flour, butter, fish, sugar, 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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