Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
A Strong Fish Gravy
Ingredients
Directions
Prepare the fish
Skin or scale the fish, gut them, and wash them to remove grit.
Cut the fish into small pieces and place them in a saucepan.
Make the gravy
Cover the fish with water and add the toasted bread, mace, whole pepper, sweet herbs, and lemon peel.
Bring to a boil and let it simmer until rich and flavorful.
Add the butter to the saucepan according to the amount of gravy; if using 1 pint, use a piece the size of a walnut.
Melt the butter, then sprinkle in the flour and stir until browned.
Strain the gravy into the saucepan and let it boil for a few minutes.
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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Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Fish + breadtop 10% of all pairsSmell alikemoderateCooked together1,668 recipes
Shared aroma: 2-undecenal (sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish
- Provides the main flavour and body of the gravy as it simmers in the water.
- Butter
- Adds richness and fat, and with the flour forms a roux that thickens the gravy.
- Flour
- Thickens the gravy when cooked with butter until browned.
- Toasted bread
- Adds body and a toasted aroma to the simmered liquid.
The step that matters
Browning the flour and butter. Stirring the flour into melted butter forms a roux; cooking it until browned adds nutty flavour and colour, but it can scorch if left unattended, and it must be cooked enough to remove raw flour taste before the liquid is added.
Swap the mace
How well each one fits the dish's main ingredients (fish, bread, pepper, parsley, lemon, butter, flour):
- Marjoramfits better
- Thymefits better
- Capersfits better
- Macethe original
Fit is the average pairing score against fish, bread, pepper, parsley, lemon, butter, flour. 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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