Why it works: Onion and vinegar are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 18,226 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Pickled Onions
Ingredients
Directions
Prepare
Harvest and peel the onions.
Boil the onions in water for 3-4 minutes until they look clear.
Pickle
Transfer the onions to jars.
Pour the pale vinegar over the onions.
Add any favorite spices if desired.
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 + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onions
- Provide the main bulk and texture, and boiling mellows their sharp bite.
- Pale vinegar
- Adds acidity that sharpens the flavor and helps preserve the onions.
The step that matters
Boiling the onions for 3-4 minutes. Heat softens the onion's cell walls and mellows its sharpness. Boiling too long turns the onions limp and mushy, so they should be removed as soon as they look clear.
“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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