Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Onions, Stuffed
Ingredients
Directions
Prepare the onion
Scoop out the center of the onion and peel it.
Blanch the onion in boiling water.
Fill the center with forcemeat.
Cook
Place the onion in a stewpan and cover it with slices of bacon.
Sprinkle with salt and pepper.
Cook over medium heat until done.
Finish and serve
Remove the onion and reduce the sauce in the pan.
Pour the sauce over the onion and serve.
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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Chicken + mushroomtop 4% of all pairsSmell alikemoderateCooked together4,172 recipes
Shared aroma: 1-butyl acetate (fruity, banana).
-
Onion + chickentop 8% of all pairsSmell alikemoderateCooked together17,814 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 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
- Spanish onion
- Forms the edible shell that holds the forcemeat and softens as it cooks.
- Forcemeat
- Provides the rich, savory filling that cooks through inside the onion.
- Bacon
- Covers the onion and releases fat that adds savory flavor and browning.
The step that matters
Cook over medium heat until done. Medium heat lets the onion and forcemeat cook through gently. Higher heat can scorch the bacon and sugars in the onion before the center is tender, and the sauce may reduce too fast.
Swap the parsley
How well each one fits the dish's main ingredients (onion, chicken, ham, mushroom, pepper):
- Garlicfits better
- Thymefits better
- Celeryfits about as well
- Parsleythe original
Fit is the average pairing score against onion, chicken, ham, mushroom, pepper. 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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