Name: Chicory Salad
Ingredients: 1 head chicory; ¼ teaspoon salt; ⅛ teaspoon pepper; 4 tablespoons olive oil; 2 tablespoons vinegar; 1 tablespoon onion, finely chopped; 1 tablespoon parsley, finely chopped

Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Chicory Salad

Ingredients

Directions

Prepare the chicory

Separate the leaves from the chicory head, wash thoroughly, and drain.
Arrange the leaves in a salad bowl to resemble the original shape.

Make the dressing

In a bowl, mix salt, pepper, olive oil, and vinegar until well blended.
Add the finely chopped onion and parsley to the dressing and stir.

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 + parsleytop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Olive + parsleytop 6% of all pairs

Smell alikestrong

Cooked together9,649 recipes

Shared aroma: 2,4-decadienal (seaweed).
Chicory + parsleytop 6% of all pairs

Smell alikestrong

Cooked together41 recipes

Shared aroma: coumarin (sweet, hay).
Chicory + olivetop 7% of all pairs

Smell alikestrong

Cooked together137 recipes

Shared aroma: coumarin (sweet, hay).
Olive + oniontop 8% of all pairs

Smell alikemoderate

Cooked together29,779 recipes

Shared aroma: 2,4-decadienal (seaweed).

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

What each ingredient does

Chicory: Provides the crisp, slightly bitter leaves that form the body of the salad.
Olive oil: Carries the flavor of the dressing and coats the leaves with fat for a smooth mouthfeel.
Vinegar: Adds acidity that sharpens the dressing and balances the oil.

Swap the onion

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

Lettucefits better
Shallotfits better
Spinachfits better
Onionthe original

Fit is the average pairing score against chicory, pepper, olive, vinegar, parsley. 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.