Why it works: Tarragon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,563 recipes. Both carry estragole, which smells anise, licorice. The science ↓
Curry Sandwich
Ingredients
Directions
Prepare the filling
Boil the eggs hard and place them in cold water.
Once cold, shell the eggs and place the yolks in a mortar.
Add butter, curry powder, breadcrumbs, essence of anchovy, and salt to the yolks.
Pound to a smooth paste, gradually mixing in tarragon vinegar.
Assemble and serve
Spread the curry mixture over half of the bread slices.
Cover with the remaining slices, press together, and cut into fingers or strips.
Arrange on a folded serviette or ornamental dish-paper and garnish with parsley.
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 + parsleytop 1% of all pairsSmell alikestrongCooked together1,563 recipes
Shared aroma: estragole (anise, licorice).
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Tarragon + vinegartop 7% of all pairsSmell alikemoderateCooked together2,547 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Anchovy + breadtop 10% of all pairsSmell alikemoderateCooked together1,260 recipes
Shared aroma: hexanol (green, fruity).
-
Egg + anchovytop 12% of all pairsSmell alikemoderateCooked together2,330 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Hard-boiled yolks form the bulk of the filling, giving it a rich, crumbly body.
- Butter
- Fat that softens the yolk paste and makes it smooth and spreadable.
- Curry powder
- Supplies the spiced aroma that defines the filling's flavour.
- Breadcrumbs
- Absorb liquid and help thicken the paste so it holds together.
- Tarragon vinegar
- Adds acidity that brightens the rich yolk mixture and balances its fat.
The step that matters
Pounding the paste smooth before adding vinegar. Yolks and butter must be worked into a smooth, even paste first; adding the vinegar gradually lets it emulsify in rather than making the mixture separate or runny.
Swap the tarragon
How well each one fits the dish's main ingredients (egg, butter, anchovy, vinegar, bread, parsley):
- Capersfits better
- Tarragonthe original
- Thymefits about as well
- Nutmegfits less well
Fit is the average pairing score against egg, butter, anchovy, vinegar, bread, parsley. 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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