Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Stuffed Peppers
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the peppers
Select peppers of suitable size and shape for stuffing; cut a slice from the end and remove the seeds.
Make the filling
Make a white sauce by melting butter, adding flour, and gradually whisking in milk until thickened.
Stir the minced meat and grated onion into the white sauce.
Bake and serve
Fill the peppers with the mixture and cover with buttered crumbs.
Place the stuffed peppers in a baking pan and add a little hot water.
Bake at 350°F (175°C) for 30 minutes.
Serve as an entree or luncheon dish.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Thickens the butter and milk into a white sauce that binds the filling.
- Butter
- Enriches the white sauce and buttered crumbs, adding richness and browning.
- Rich milk
- Forms the liquid base of the white sauce, giving the filling a creamy texture.
- Cooked veal, chicken, or ham
- Provides the savory meat that gives the filling its main flavor and body.
- Grated onion
- Adds aromatic flavor to the white sauce and meat mixture.
The step that matters
Thickening the white sauce. Flour must be cooked into the melted butter and milk slowly while whisking, so starch swells evenly and the sauce thickens without lumps, letting it hold the filling together.
Swap the onion
How well each one fits the dish's main ingredients (pepper, flour, butter, milk, veal):
- Potatofits better
- Capsicumfits better
- Leekfits better
- Onionthe original
Fit is the average pairing score against pepper, flour, butter, milk, veal. 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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