Name: Potato Salad
Ingredients: 1 cup mayonnaise; 3 cups cold boiled potatoes; parsley, to taste; onion, to taste; 2 heads lettuce

Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Potato Salad

Ingredients

Directions

Prepare

Cut the cold boiled potatoes into small round balls.
Chop the onion very finely.

Make the salad

Mix the chopped onion with the potatoes and mayonnaise, adding a little chopped parsley.
Serve the salad very cold on a bed of lettuce.

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.

Potato + oniontop 3% of all pairs

Smell alikemoderate

Cooked together9,023 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Parsley + lettucetop 5% of all pairs

Smell alikestrong

Cooked together1,483 recipes

Shared aroma: trans-2-hexenal (green, leafy).
Potato + parsleytop 5% of all pairs

Smell alikemoderate

Cooked together2,855 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Potato + lettucetop 7% of all pairs

Smell alikestrong

Cooked together322 recipes

Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
Onion + lettucetop 8% of all pairs

Smell alikestrong

Cooked together3,562 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

What each ingredient does

Potatoes: Form the bulk of the salad, providing the body that the dressing coats.
Mayonnaise: Binds the potatoes and onion together and adds moisture and richness.
Onion: Adds sharp, aromatic bite that balances the creamy mayonnaise.