Why it works: Onion and parsley are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 25,843 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Stuffed Onions
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 the onions
Parboil the onions until slightly tender, then drop them in cold water.
Remove the hearts from the onions and fill them with rich bread dressing or forcemeat.
Bake
Arrange the stuffed onions in a pan and pour in the stock or hot water.
Place a piece of salt pork on top of each onion and bake in a 350°F (175°C) oven.
Remove the salt pork before serving and present the dish on a hot platter surrounded by blanched parsley.
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 + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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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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Bread + porktop 13% of all pairsSmell alikemoderateCooked together4,371 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Bread + parsleytop 15% of all pairsSmell alikemoderateCooked together8,588 recipes
Shared aroma: 2,4-decadienal (seaweed).
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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
- Form the edible shell that holds the dressing and softens as it bakes.
- Rich bread dressing or forcemeat
- Provides the savory, moist filling that cooks inside the onion.
- Stock or hot water
- Adds moisture to the pan so the onions steam and bake without drying out.
- Salt pork
- Slowly renders fat over the onions, adding richness and flavor as it bastes them.
The step that matters
Parboil the onions until slightly tender. Undercooked onions stay firm and bitter-tasting, while overcooked ones tear and collapse. Stopping at slight tenderness lets them finish baking gently while holding their shape around the filling.
Swap the parsley
How well each one fits the dish's main ingredients (onion, bread, pork):
- Garlicfits better
- Thymefits better
- Marjoramfits about as well
- Parsleythe original
Fit is the average pairing score against onion, bread, pork. 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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