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 ↓
Roes, Mackerel, in Cases
Ingredients
Directions
Prepare the roe
Broil the mackerel until well done.
Remove the roe and place them in small cases.
Add chopped parsley, rasped bread, salt, pepper, and butter to the roe.
Bake and serve
Put the cases in the oven until very hot.
Serve with white sharp sauce and lemon juice.
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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Parsley + peppertop 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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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- Mackerel roe
- Forms the rich, soft filling that gives the dish its main flavour and body.
- Rasped bread crust
- Absorbs moisture and gives the filling a light, crumbly texture.
- Butter
- Adds fat for richness and helps the filling brown lightly in the oven.
- Parsley
- Adds fresh, herbal aroma that balances the richness of the roe.
The step that matters
Heating the cases until very hot. The roe is already cooked, so the goal is only to heat the filling through and set the crumbs and butter. Overheating can dry the filling and toughen the roe, while underheating leaves the centre cool and greasy.
“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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