Why it works: Onion and olive are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 29,779 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Uncooked Pickles
Ingredients
Directions
Prepare the pickles
Slice pickles into ¼ inch thick slices.
Pack pickles in quart jars with thinly sliced onions and one hot red pepper per jar.
Add salt and fill jars with water.
Add pulverized alum and let stand overnight.
Drain water and rinse pickles.
Pack and seal
Fill jars with pickles, add olive oil, and fill with sharp vinegar.
Seal the jars.
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 + olivetop 8% of all pairsSmell alikemoderateCooked together29,779 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Olive + vinegartop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + olivetop 11% of all pairsSmell alikemoderateCooked together30,263 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
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
- Pickles
- Form the main body of the jar, supplying crunch once the brine has done its work.
- Salt
- Draws water out of the pickles and seasons them during the overnight soak.
- Pulverized alum
- Helps the pickles stay firm and crisp through the brining process.
- Sharp vinegar
- Provides the acidity that preserves the pickles and gives them their tang.
- Onions
- Add sweetness and aroma that mellow as the pickles sit in the brine.
The step that matters
Add pulverized alum and let stand overnight. Alum is used in small amounts because too much makes pickles harsh and bitter. Letting them stand overnight gives it time to firm the pickle texture before the rinse and final packing.
Swap the onion
How well each one fits the dish's main ingredients (pepper, olive, vinegar):
- Capsicumfits better
- Tomatofits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against pepper, olive, vinegar. 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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