Why it works: Tarragon and mustard match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 901 recipes. Both carry methyleugenol, which smells clove, spice. The science ↓
For Asparagus Puree
Ingredients
Directions
Make the sauce base
Melt the butter in a saucepan over medium heat.
Add the flour and stir well to combine.
Gradually add the milk while stirring continuously until the mixture reaches a boiling point.
Finish and add asparagus
Remove from heat and stir in the egg yolks, tarragon vinegar, heavy cream, mixed mustard, cayenne pepper, and salt.
Fold in the cooked asparagus gently.
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 + mustardtop 1% of all pairsSmell alikestrongCooked together901 recipes
Shared aroma: methyleugenol (clove, spice).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Enriches the base and adds richness and flavour to the sauce.
- All-purpose flour
- Thickens the butter and milk into a smooth, stable sauce base.
- Milk
- Forms the liquid body of the sauce once thickened with flour.
- Egg yolks
- Add richness and help thicken and set the sauce when stirred in off heat.
- Heavy cream
- Adds fat for a smoother, silkier texture and mouthfeel.
- Cooked asparagus
- Provides the main vegetable flavour and body for the puree.
The step that matters
Stir in the egg yolks off the heat. Egg yolks thicken by gentle heat and can scramble or curdle if they meet a hot, boiling mixture. Removing the pan from heat first lets them enrich the sauce smoothly.
Swap the mustard
How well each one fits the dish's main ingredients (butter, flour, milk, egg, tarragon, vinegar, cream):
- Shallotfits better
- Chivefits about as well
- Asparagusfits about as well
- Mustardthe original
Fit is the average pairing score against butter, flour, milk, egg, tarragon, vinegar, 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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