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 Onions
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Boil the onions until tender, then scrape out the insides.
Make the filling
Chop the insides finely and mix with equal parts of chopped meat, salt, pepper, a little butter, and a few soft bread crumbs.
Stuff and bake
Stuff each onion with a spoonful of the mixture.
Place the stuffed onions in the oven and bake at 400°F (200°C) for fifteen minutes.
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).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Meat + breadtop 14% of all pairsSmell alikemoderateCooked together2,924 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 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
- Onions
- Softened by boiling, they form the edible shell that holds the filling.
- Chopped meat
- Provides the main protein and savory richness of the filling.
- Soft bread crumbs
- Absorb moisture and help bind the filling so it holds its shape.
- Butter
- Adds fat for richness and helps the filling brown lightly in the oven.
The step that matters
Boiling the onions until tender. Onions must be fully tender before scooping, otherwise the shells tear and resist the filling. Cooking softens the cell walls so the shells hold together while stuffed and baked.
Swap the onion
How well each one fits the dish's main ingredients (meat, pepper, butter, bread):
- Capsicumfits better
- Potatofits better
- Tomatofits about as well
- Onionthe original
Fit is the average pairing score against meat, pepper, butter, bread. 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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