Why it works: Cucumber and mustard match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 2,281 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Cold Cucumber Pickle
Ingredients
Directions
Prepare the vegetables
Pare and slice the cucumbers.
Skin and slice the onions.
Sprinkle the salt over the cucumbers and onions.
Place in a colander and drain for 12 hours.
Pickle and rest
Mix the mustard seed and black pepper with the cucumbers and onions.
Cover with vinegar.
Seal in an airtight container.
Let sit for 3 days before serving.
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.
-
Cucumber + mustardtop 3% of all pairsSmell alikestrongCooked together2,281 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Cucumber + oniontop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cucumber + vinegartop 8% of all pairsSmell alikemoderateCooked together4,734 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cucumbers
- Provide the main bulk and crisp texture of the pickle.
- White onions
- Add savory sharpness and aroma that complements the cucumbers.
- Coarse sea salt
- Draws water out of the vegetables, firming them and helping them keep their crispness.
- White mustard seed
- Adds pungent, sharp flavor and a mild bite to the brine.
- Vinegar
- Provides acidity that preserves the vegetables and gives the pickle its tang.
The step that matters
Drain the salted vegetables for 12 hours. Salt pulls moisture out of the cucumbers and onions. Draining fully removes that water so the pickle stays crisp and the vinegar is not diluted.
Swap the onion
How well each one fits the dish's main ingredients (cucumber, mustard, pepper, vinegar):
- Horseradishfits better
- Lettucefits better
- Radishfits better
- Onionthe original
Fit is the average pairing score against cucumber, mustard, pepper, 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Chicken Salad623 recipes
Salad Dressing491 recipes
Tomato Salad179 recipes
Cold Slaw160 recipes