Why it works: Tarragon and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,137 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Hollandaise Sauce
Ingredients
Directions
Make the base
Combine bay leaf, onion, and vinegar in a small saucepan.
Bring to a boil and then cool.
In a double boiler, rub together the butter and flour.
Gradually add the strained vinegar mixture and stir until thickened.
Finish and serve
Remove from heat and stir in the egg yolks one at a time, stirring gently.
Reheat briefly, then add salt and pepper.
Strain and serve immediately.
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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Tarragon + lemontop 1% of all pairsSmell alikestrongCooked together1,137 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Onion + tarragontop 12% of all pairsSmell alikemoderateCooked together1,568 recipes
Shared aroma: coumarin (sweet, hay).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + tarragontop 12% of all pairsSmell alikemoderateCooked together788 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 richness and a smooth, silky mouthfeel to the sauce.
- Flour
- Thickens the butter into a stable base that helps the sauce hold together.
- Egg yolks
- Emulsify with the butter and set gently with heat to give the sauce its body.
- Tarragon vinegar
- Adds acidity that sharpens the flavour and balances the richness of the butter and yolks.
- Lemon juice
- Adds bright acidity that lifts the flavour of the rich sauce.
The step that matters
Stir in the egg yolks gently off the heat. Egg yolks scramble if they get too hot, turning the sauce grainy. Removing it from heat and stirring gently lets the yolks thicken smoothly and emulsify with the butter.
Swap the white pepper
How well each one fits the dish's main ingredients (butter, flour, onion, tarragon, vinegar, lemon, egg):
- Parsleyfits better
- Capersfits better
- Thymefits better
- White pepperthe original
Fit is the average pairing score against butter, flour, onion, tarragon, vinegar, lemon, 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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