Why it works: Green beans and onion match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and 334 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
8 servingsIngredients
Directions
Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.
Bring a large pot of water to a boil. Add the trimmed green beans and cook until crisp-tender, about 4 minutes. Drain and set aside.
While the beans cook, place the bacon pieces in a large skillet over medium heat. Cook, stirring occasionally, until crisp and the fat has rendered, about 5 minutes. Transfer the bacon to a plate, leaving the fat in the skillet.
Add the sliced yellow onion to the bacon fat in the skillet. Cook over medium heat, stirring, until softened, about 3 minutes.
Stir in the red wine vinegar and white sugar, scraping up any browned bits from the bottom of the pan. Simmer for 1 minute until the sugar dissolves.
Add the green beans, bacon, and chopped parsley to the skillet. Toss over medium heat for about 2 minutes until coated and heated through. Serve warm.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Green beans + oniontop 7% of all pairsAroma overlapstrongMentioned together334 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Red wine + vinegartop 4% of all pairsAroma overlapstrongMentioned together569 recipes
Shared aroma: sotolon (curry, maple).
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Onion + parsleytop 6% of all pairsAroma overlapstrongMentioned together25,834 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + vinegartop 7% of all pairsAroma overlapmoderateMentioned together18,203 recipes
Shared aroma: acetic acid (sour, vinegar).
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Vinegar + sugartop 8% of all pairsAroma overlapmoderateMentioned together20,804 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the parsley
How well each one fits the dish's main ingredients (green beans, onion, red wine, vinegar, sugar):
- Garlicbetter flavor fit
- Gingerbetter flavor fit
- Celerybetter flavor fit
- Parsleythe original
Fit is the average pairing score against green beans, onion, red wine, vinegar, sugar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
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