Why it works: Parsley and thyme match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 9,057 recipes mention both. Both carry cuminaldehyde, which smells Spicy, cumin. The science ↓
The recipe
Ingredients
Contains: milk, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Also mentioned in the method: mackerel
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the fillets
Fillet the mackerel and cut each fillet in two, shaping them neatly.
Marinate the fillets in oil, parsley, bay leaf, thyme, fennel, onion, pepper, and salt for half a day.
Drain the fillets and place them in a sauté pan with clarified butter.
Cook and serve
Cover with buttered paper and bake at 350 °F (175 °C) or sauté over high heat until done.
Wash the soft roes, drain, and bake them covered with butter, seasoned with salt and pepper.
Drain the fillets and serve them on a dish, masking with Steward’s sauce.
Once done, place the soft roes on top of the fillets for garnish.
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 aroma chemistry they share, and how many recipes mention both.
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Parsley + thymetop 1% of all pairsAroma overlapstrongMentioned together9,057 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Thyme + fenneltop 1% of all pairsAroma overlapstrongMentioned together337 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Parsley + peppertop 2% of all pairsAroma overlapstrongMentioned together34,118 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + fenneltop 2% of all pairsAroma overlapstrongMentioned together625 recipes
Shared aroma: myristicin (spice, warm).
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Thyme + peppertop 3% of all pairsAroma overlapstrongMentioned together11,585 recipes
Shared aroma: beta-phellandrene (minty, terpene).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mackerel (in the method)
- Forms the main body of the dish as the fish fillets that are cooked and served.
- Oil
- Carries the herbs and aromatics into the fish during the marinade and keeps the flesh moist.
- Clarified butter
- Cooks the fillets in fat and adds richness and golden browning in the pan.
- Soft roes
- Add a rich, creamy texture and savoury flavour as a garnish on the fillets.
The step that matters
Cooking the fillets until done. Mackerel flesh is delicate and dries out or toughens quickly with high heat or overcooking, so it should be watched closely and removed as soon as it flakes.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (parsley, thyme, fennel, pepper, butter, sauce, roe):
- Carrotbetter flavor fit
- Potatobetter flavor fit
- Capsicumbetter flavor fit
- Onionthe original
Fit is the average pairing score against parsley, thyme, fennel, pepper, butter, sauce, roe. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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