Why it works: Onion and pork are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 18,214 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Portugal Onions, Stuffed
Ingredients
Directions
Prepare the onions
Peel the onions and scoop out the center, making a hole two inches across.
Fill the onions with sausage meat.
Place the stuffed onions in a stewpan.
Prepare the filling
Pare, core and finely chop the apples.
Knead the flour with the butter.
Place half of the kneaded mixture in each onion.
Simmer and serve
Add the chopped apples and stock to the onions.
Simmer very slowly for three and a half hours, basting frequently with the gravy.
Pour the lemon juice and brandy over the onions.
Skim off the butter after five minutes.
Serve with the sauce poured over the onions.
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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Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Apple + brandytop 11% of all pairsSmell alikemoderateCooked together1,291 recipes
Shared aroma: beta-damascenone (apple, rose).
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Pork + meattop 11% of all pairsSmell alikemoderateCooked together3,208 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pork + appletop 13% of all pairsSmell alikemoderateCooked together1,581 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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
- Portugal onions
- Form the hollow vessel that holds the filling and softens into a sweet, tender base.
- Sausage meat
- Provides savory, rich filling that cooks through and flavors the onions and gravy.
- Apples
- Add moisture and a mild sweetness that balances the savory sausage and rich butter.
- Baked flour
- Thickens the gravy as the stock simmers around the onions.
- Butter
- Adds fat and richness to the kneaded filling and the gravy.
- Lemon juice
- Adds acidity that brightens the rich sausage and butter flavors.
The step that matters
Simmer very slowly. Gentle, long simmering lets the onions become tender all the way through without breaking apart, while the sausage cooks fully. Frequent basting keeps the surface moist and builds a glossy gravy.
Swap the lemon
How well each one fits the dish's main ingredients (onion, pork, meat, apple, flour, butter, brandy):
- Figfits better
- Grapefits better
- Plumfits better
- Lemonthe original
Fit is the average pairing score against onion, pork, meat, apple, flour, butter, brandy. 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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