Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Clam Chowder
Ingredients
Directions
Build the layers
Cover the bottom of a kettle with thin slices of pickled pork or lard, and fry the pork.
Add a layer of clams.
Strew chopped onions, sliced potatoes, and split crackers over the clams.
Season with salt, pepper, and optional spices.
Add another layer of clams and other ingredients until used up.
Dredge the mixture with flour.
Stew and thicken
Cover with clam liquor and water.
Stew gently for about 30 minutes.
Thicken the gravy by adding 1 tablespoon of flour mixed with 1 teacup of butter.
Stew for a couple of minutes.
Dish the chowder.
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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Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + potatotop 5% of all pairsSmell alikemoderateCooked together2,668 recipes
Shared aroma: sotolon (curry, maple).
-
Pork + clamtop 9% of all pairsSmell alikemoderateCooked together305 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Clam + potatotop 9% of all pairsSmell alikemoderateCooked together80 recipes
Shared aroma: (z)-4-decenal (green, must).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Clams
- Provide the main seafood flavor and the chowder's body.
- Potatoes
- Add starch and bulk, helping the chowder feel substantial and creamy as they soften.
- Flour
- Dredged over the layers and mixed with butter to thicken the gravy.
- Butter
- Adds richness and fat, rounding out the flavor and smoothing the thickened gravy.
- Pickled pork or lard
- Provides fat and savory flavor from frying at the start.
The step that matters
Thicken the gravy with flour and butter. Adding flour mixed with butter at the end lets it thicken the liquid evenly. Stirring it in as a smooth paste avoids lumps, and a brief simmer cooks out the raw flour taste.
Swap the onion
How well each one fits the dish's main ingredients (pork, clam, potato, pepper, flour, butter):
- Capsicumfits better
- Onionthe original
- Asparagusfits about as well
- Chivefits about as well
Fit is the average pairing score against pork, clam, potato, pepper, flour, butter. 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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