Name: Turkey Stuffing
Ingredients: 1 onion, chopped; 2 tablespoons parsley, chopped; ½ cup bread, soaked in milk; 1 raw egg; 4 tablespoons butter; ¼ teaspoon pepper; ¼ teaspoon coarse sea salt; optional: olives (omit onion if using)

Why it works: Parsley and pepper 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 ↓

Turkey Stuffing

Ingredients

Directions

Prepare

In a pan, combine chopped onion, parsley, soaked bread, raw egg, butter, pepper, and salt.
Fry the mixture for 10 minutes.

Stuff and close

Stuff the mixture into the turkey and sew it up.
If using olives, omit the onion.

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.

Parsley + peppertop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Parsley + olivetop 6% of all pairs

Smell alikestrong

Cooked together9,649 recipes

Shared aroma: 2,4-decadienal (seaweed).
Bread + buttertop 7% of all pairs

Smell alikemoderate

Cooked together27,232 recipes

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

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Onion + olivetop 8% of all pairs

Smell alikemoderate

Cooked together29,779 recipes

Shared aroma: 2,4-decadienal (seaweed).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Raw egg: Binds the stuffing together so it holds its shape when cooked.
Bread: Soaked in milk, it adds moisture and a soft, tender texture.
Butter: Adds fat and richness, helping the stuffing brown lightly while frying.
Onion: Adds savoury sweetness and aroma as it softens in the pan.

Swap the onion

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

Capsicumfits better
Potatofits better
Tomatofits better
Onionthe original

Fit is the average pairing score against parsley, bread, milk, egg, butter, pepper, olive. 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.