Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Boiled Sea Bass, Sauce Hollandaise
Ingredients
Directions
The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Poach the fish
Fill a pot with water and add salt.
Bring the water to a boil.
Add the whole sea bass and cook until done, about 15‑20 minutes.
Make the hollandaise
In a saucepan, melt the butter over low heat.
In a bowl, whisk the egg yolks and lemon juice until thick.
Slowly add the melted butter to the egg mixture, whisking constantly.
Season the sauce with salt and white pepper.
Serve
Serve the boiled sea bass with the hollandaise sauce drizzled on top.
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 + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Lemon + white peppertop 16% of all pairsSmell alikelowCooked together1,658 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
-
Egg + white peppertop 21% of all pairsSmell alikelowCooked together2,312 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
Egg and lemon barely smell alike, yet cooks put them together in 44,316 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
- Sea bass
- Forms the main body of the dish, cooked gently in simmering water until flaky.
- Egg yolks
- Emulsify with melted butter to thicken the sauce into a smooth, rich hollandaise.
- Butter
- Provides fat that, emulsified with egg yolk, gives the sauce its creamy richness.
- Lemon juice
- Adds acidity that brightens the rich sauce and helps stabilise the emulsion.
The step that matters
Adding the melted butter to the yolks. Butter must be added slowly while whisking constantly so the yolk proteins can emulsify the fat. Adding it too fast, or letting the yolks overheat, can cause the sauce to split or scramble.
Swap the white pepper
How well each one fits the dish's main ingredients (butter, egg, lemon):
- Parsleyfits better
- Tarragonfits better
- Nutmegfits better
- White pepperthe original
Fit is the average pairing score against butter, egg, lemon. 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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