Name: Clam Chowder
Ingredients: ½ cup grated bread crumbs or soaked crackers; ¼ teaspoon pepper; 1 tablespoon butter (size of a hickory nut); 1 tablespoon finely chopped parsley (optional); 50 clams, cleaned; 1 cup milk or water; ½ pound soda biscuits, soaked

Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Clam Chowder

Oven, in the book's wordsA hot oven

Ingredients

½ cup grated bread crumbs or soaked crackers
¼ teaspoon pepper
1 tablespoon butter (size of a hickory nut)
1 tablespoon finely chopped parsley (optional)
50 clams, cleaned
1 cup milk or water
½ pound soda biscuits, soaked

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare

Preheat the oven to 400°F (200°C).
Grease a deep tin basin and layer it with grated bread crumbs or soaked crackers.

Layer and bake

Sprinkle pepper and add butter and parsley if desired.
Add a layer of clams and season with pepper.
Cover with another layer of soaked crackers, then more clams and butter.
Sprinkle with pepper again and pour in milk or water.
Top with a final layer of soaked crackers.
Cover with a plate and bake for 45 minutes.

Recipe from a historical cookbook (Internet Archive).

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.

Pepper + parsleytop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Bread + buttertop 7% of all pairs

Smell alikemoderate

Cooked together27,232 recipes

Shared aroma: delta-decalactone (sweet, creamy).
Butter + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Parsley + biscuittop 10% of all pairs

Smell alikestrong

Cooked together204 recipes

Shared aroma: coumarin (sweet, hay).
Bread + milktop 11% of all pairs

Smell alikemoderate

Cooked together11,466 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

Clams: Provide the main seafood flavor and the chowder's substance.
Soda biscuits: Soak up liquid and thicken the dish as they bake, giving it body.
Milk or water: Supplies moisture that steams the layers and softens the crackers as they bake.
Butter: Adds richness and fat, carrying flavor through the layers.
Bread crumbs or crackers: Form the base and absorb moisture, helping the layers hold together.

Swap the parsley

The recipe marks parsley as optional. How well each one fits the dish's main ingredients (bread, pepper, butter, clam, milk, biscuit):

Parsleythe original
Nutmegfits about as well
Cinnamonfits less well
Capersfits less well

Fit is the average pairing score against bread, pepper, butter, clam, milk, biscuit. 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.