Why it works: Onion and peas are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 5,460 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Serves 6Ingredients
Contains: milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.
Bring a pan of boiling water to a boil. Add the frozen pearl onions and cook for 3 minutes, then add the frozen peas and cook 2 minutes more. Drain well.
While the vegetables cook, melt the sweet cream butter in a large saucepan over medium heat.
Whisk in the all-purpose flour and cook, stirring, for 1 minute until bubbling.
Slowly whisk in the heavy cream and whole milk. Simmer over medium-low heat, stirring often, for 4 minutes until thickened.
Stir in the black pepper, then add the drained onions and peas. Cook for 2 minutes until heated through, then serve hot.
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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Onion + peastop 7% of all pairsAroma overlapmoderateMentioned together5,460 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + milktop 3% of all pairsAroma overlapstrongMentioned together81,222 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Cream + buttertop 3% of all pairsAroma overlapstrongMentioned together41,494 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + flourtop 6% of all pairsAroma overlaplowMentioned together122,858 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + peppertop 6% of all pairsAroma overlapmoderateMentioned together68,463 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Butter and flour share little aroma chemistry, yet 122,858 recipes mention both: they likely work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
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