Why it works: Capers and tarragon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 379 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Gravies and Sauces
Ingredients
Directions
Prepare the flavouring
Combine celery and savory or herbs in a pot.
Cover and simmer gently for 30 minutes.
Make the sauce
Heat butter in a stew pan.
Fry the onion over high heat for 2 minutes until slightly colored.
Stir in enough flour to form a stiff paste.
Gradually mix in the prepared gravy.
Let the mixture boil gently for 15 minutes until it thickens to a cream-like consistency.
Strain the sauce through a sieve into a basin.
Return the strained sauce to the stew pan.
Season with pickled onions, walnuts, gherkins, mushroom ketchup, capers, ale, or vinegar as desired.
Serve
Cover the bottom of a serving dish with toasted bread sippets to soak up the gravy.
Garnish with fried bread sippets if desired.
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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Capers + tarragontop 1% of all pairsSmell alikestrongCooked together379 recipes
Shared aroma: coumarin (sweet, hay).
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Lemon + tarragontop 1% of all pairsSmell alikestrongCooked together1,137 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Celery + tarragontop 1% of all pairsSmell alikestrongCooked together456 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Celery + lemontop 3% of all pairsSmell alikestrongCooked together3,467 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Lemon + caperstop 5% of all pairsSmell alikestrongCooked together1,222 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Enriches the sauce and carries flavour while the onion and flour cook.
- Flour
- Thickens the gravy into a smooth, stiff base that sets as it boils.
- Onion
- Adds savoury sweetness and aroma when lightly browned in the butter.
- Celery
- Contributes a fresh, aromatic vegetable flavour to the stock base.
- Gravy made from bones
- Supplies the main liquid and meaty savour of the sauce.
The step that matters
Adding the flour to the butter. Stir the flour in fully so it forms a smooth paste before adding liquid. Lumps form if flour meets liquid unevenly, and cooking the raw flour briefly removes its starchy taste and lets it thicken evenly as the gravy boils.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (celery, lemon, butter, flour, mushroom, capers, tarragon):
- Shallotfits better
- Chivefits better
- Arrowrootfits better
- Onionthe original
Fit is the average pairing score against celery, lemon, butter, flour, mushroom, capers, tarragon. 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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