Name: Cucumber Salad
Ingredients: 2 cucumbers; coarse sea salt; black pepper; vinegar; olive oil; 2 teaspoons sugar; 1 lemon

Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Cucumber Salad

Ingredients

Directions

Prepare

Slice the cucumbers thinly, leaving the stalk end intact.
Sprinkle with coarse sea salt and black pepper.
Drizzle with vinegar and olive oil to taste.

Dress and toss

In a separate bowl, mix sugar with the juice of the lemon.
Pour the lemon mixture over the cucumbers and toss gently.

Recipe from a historical cookbook (Internet Archive).

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.

Pepper + lemontop 3% of all pairs

Smell alikestrong

Cooked together27,047 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Cucumber + olivetop 6% of all pairs

Smell alikestrong

Cooked together3,611 recipes

Shared aroma: 2-methylbutyl acetate (fruit).
Olive + lemontop 7% of all pairs

Smell alikemoderate

Cooked together11,922 recipes

Shared aroma: 3-hexenal (apple, fruity).
Cucumber + vinegartop 8% of all pairs

Smell alikemoderate

Cooked together4,734 recipes

Shared aroma: 2-methylbutyl acetate (fruit).
Cucumber + lemontop 9% of all pairs

Smell alikestrong

Cooked together2,067 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Cucumbers: Form the crisp, watery body of the salad.
Sugar: Adds sweetness to balance the sour vinegar and lemon.
Lemon: Provides acidity and bright citrus flavour.
Vinegar: Adds sharp acidity that seasons the cucumbers.
Olive oil: Adds fat that carries flavour and coats the cucumber slices.

Swap the cucumber

How well each one fits the dish's main ingredients (pepper, vinegar, olive, sugar, lemon):

Capsicumfits better
Mustardfits about as well
Broccolifits about as well
Cucumberthe original

Fit is the average pairing score against pepper, vinegar, olive, sugar, lemon. 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.