Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Hollandaise Sauce
Ingredients
Directions
Make the base
Combine melted butter and flour in a bowl; cook until smooth and let cool.
Add egg yolks and cream to the mixture and mix well.
Cook and serve
Place the mixture in a double boiler and cook until thick.
Stir in the lemon juice just 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 + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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 + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
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 fat and richness, giving the sauce a smooth, rounded mouthfeel.
- Flour
- Thickens the butter and helps give the sauce body and structure.
- Egg yolks
- Emulsify the butter and thicken as they gently heat, setting the sauce.
- Cream
- Adds moisture and softness, mellowing the sauce and making it silkier.
- Lemon juice
- Adds acidity that brightens the rich butter and egg flavour.
The step that matters
Cooking the yolk mixture in the double boiler until thick. Egg yolks thicken between roughly 65 and 80°C, but overheating scrambles them into lumps. Gentle, indirect heat from the double boiler lets the sauce thicken smoothly.
Swap the lemon
How well each one fits the dish's main ingredients (butter, flour, egg, cream):
- Raisinfits better
- Vanillafits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against butter, flour, egg, cream. 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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