Why it works: Onion and potato match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 9,019 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Ingredients
Contains: milk, fish, shellfish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare the bake
Cover the oven with fresh seaweed about 1½ inches thick.
Spread the clams on the seaweed.
Layer onions, sweet or Irish potatoes, green corn, fish, and lobster on top.
Have all ingredients ready to place on the oven quickly while it is very hot.
Bake and serve
Cover the entire bake with a piece of cheap cotton cloth to keep out dirt.
Cover with more seaweed to prevent steam from escaping.
Bake for 35 minutes.
Remove the covering from one corner at a time to keep the rest hot.
Serve with drawn butter or vinegar and pepper.
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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Onion + potatotop 2% of all pairsAroma overlapstrongMentioned together9,019 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + corntop 3% of all pairsAroma overlapstrongMentioned together938 recipes
Shared aroma: (e)-2-octenal (fatty, green).
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Clam + potatotop 3% of all pairsAroma overlapstrongMentioned together80 recipes
Shared aroma: (z)-4-decenal (green, must).
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Clam + buttertop 4% of all pairsAroma overlapstrongMentioned together840 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Fish + buttertop 5% of all pairsAroma overlapstrongMentioned together4,432 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Seaweed
- Forms a thick insulating bed and cover that traps steam to cook the food.
- Clams
- Release their liquor as they open, adding moisture and briny flavor to the bake.
- Potatoes
- Starchy body that softens through steam heat and absorbs the savory juices.
- Fish
- Delicate flesh that cooks gently in trapped steam and firms as it sets.
- Lobster
- Adds sweet, rich meat that cooks in the steam along with the other layers.
The step that matters
Have all ingredients ready before placing them on the oven. The oven must be very hot when the food goes on. If layering is slow, heat escapes and the steam needed to cook everything evenly weakens.
Flavor stand-ins for the seaweed
How well each one fits the dish's main ingredients (clam, onion, potato, corn, fish, lobster, butter):
- Capsicumbetter flavor fit
- Tomatobetter flavor fit
- Asparagusbetter flavor fit
- Seaweedthe original
Fit is the average pairing score against clam, onion, potato, corn, fish, lobster, butter. 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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