Why it works: Pepper and onion are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Stuffed Sweet Peppers
Ingredients
Directions
Prepare the peppers
Remove a slice from the stem end of each pepper.
With a sharp knife, take out the seeds and white veins, then drop the peppers in hot water and simmer for ten minutes.
Plunge the peppers in cold water to harden.
Make the filling
Cook the onion in butter for a few minutes.
Add the remaining ingredients, mix well, and cool.
Sprinkle the inside of each pepper lightly with salt.
Bake and serve
Stuff the peppers with the mixture and bake in an earthen dish until lightly browned.
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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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + hamtop 16% of all pairsSmell alikemoderateCooked together5,475 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Egg + hamtop 17% of all pairsSmell alikemoderateCooked together4,526 recipes
Shared aroma: 2,4-decadienal (seaweed).
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
- Sweet peppers
- Their flesh becomes tender when simmered, forming the edible shell that holds the filling.
- Brown sauce
- Adds moisture and savory flavor that keeps the filling from drying out in the oven.
- Buttered crumbs
- Form a golden, lightly browned topping and add a crisp texture.
- Hard boiled egg
- Binds the filling and adds a soft, rich texture.
- Cooked ham
- Contributes salty, meaty flavor to the filling.
The step that matters
Simmering the peppers. Simmering softens the pepper walls enough to be tender after baking, but over-cooking makes them collapse and lose their shape when stuffed. Plunging them in cold water afterward firms them up for handling.
Swap the onion
How well each one fits the dish's main ingredients (pepper, butter, sauce, egg, ham):
- Capsicumfits better
- Mustardfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against pepper, butter, sauce, egg, ham. 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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