Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Stuffed Peppers
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Parboil the bell peppers until slightly tender.
In a skillet, sauté the chopped onion in butter until soft.
Add bread crumbs, salt, and Worcestershire sauce to the onion mixture.
Stuff and bake
Stuff each pepper with 1 tablespoon of the mixture and break an egg over each.
Cover the peppers with additional bread crumbs and bake at 350°F (175°C) for 15 minutes.
Serve the stuffed peppers on toast.
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 + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Bread + eggtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
-
Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- Bell peppers
- Act as the edible shell that holds the filling while it bakes.
- Onion
- Softens and sweetens as it sautés, adding savory depth to the filling.
- Butter
- Carries the onion's flavor and helps it brown lightly in the skillet.
- Bread crumbs
- Soak up moisture and give the filling body so it holds its shape.
- Egg
- Binds the filling and sets as it bakes, holding the stuffing together.
The step that matters
Parboil the bell peppers until slightly tender.. Undercooked peppers stay tough and bitter, while overcooked peppers turn soft and collapse under the filling. Stopping at slightly tender leaves them sturdy enough to hold the stuffing while they finish baking.
Swap the onion
How well each one fits the dish's main ingredients (pepper, butter, bread, sauce, egg):
- Capsicumfits better
- Asparagusfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against pepper, butter, bread, sauce, egg. 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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